Computer Acronym List v3.00 This is a list of computer acronyms. Use it to figure out what people are talking about. If you have any questions or additions, please feel free to contact us. Without further ado, here they are: - sUMsDos [DoS] 2B1Q 2 binary data, 1 quarternary redundance 2D Two Dimensional 2GL Second Generation Language 3ACC 3A Central Control 3D Three Dimensional 3GL Third Generation Language 3M Minnesota Mining and Manufacturing 3PTY Three Party Service 4B3T 4 binary data, 3 ternary redundance 4GL Fourth Generation Language 5B6B 5 binary data, 6 binary redundance 5XBCOER 5 X-Bar Central Office Equipment Reports system A Ampere A&SG Accessories and Supplies Group A/D Analog to Digital A/D Analog to Digital A/D Analog/Digital A/P Accounts Payable A/R Accounts Receivable AA Abort Acknowledge AA Application Association AA Auto Answer AAL ATM Adaption Layer AAMSI American Association for Medical Systems Informatics AAP Applications Access Point AAP Association of American Publishers AAR Automatic Alternative Routing AARC Anglo-American Cataloging Rules AARE A-Associate REsponse AARN Australian Academic Research Network AARNET Australian Academic Research Network AARP Appletalk Address Resolution Protocol AARQ A-Associate ReQuest AASP ASCII Asynchronous Support Package AAT Average Access Time AAX Automated Attendant eXchange AB Abort ABATS Automatic Bit Access Test System ABBS Apple Bulletin Board System ABC Atanasoff-Berry Computer ABEND ABnormal END ABHC Average Busy Hour Calls ABI American Bell Inc ABI Application Binary Interface ABIOS Advanced BIOS ABM Asynchronous Balanced Mode ABME ABM Extended ABRT A-ABoRT ABS Absolute ABS Alternative Billing Service ABSBH Average Busy Season Busy Hour ABT Abort ABU Application Business Unit AC ACcept AC Access Control AC Adaptive Control AC Alternating Current AC Answer Center AC Application Context AC Association Control AC Automatic Computer ACA Asynchronous Communication Adapter ACAP Alter Content Acknowledge Presentation ACARB Australian Computer Abuse Research Bureau ACAWS Advisory, Caution, And Warning System ACB Annoyance Call Bureau ACB Automatic Call-Back ACC Accumulator ACC Argonne Code Center ACC Audio Communications Controller ACCLAIM Action Client Card List And Information Management ACCOLC Access Overload Class ACCS Army Command and Control System ACCS Automated Calling Card Service ACCS Automated Calling Card Service ACD Automated Call Distributor ACD Automatic Call Distribution ACD Automatic Call Distributor ACDA Automatic Call Disposition Analyzer ACDF Access Control Decision Function ACE Advanced Computing Environment ACE Advanced Computing Environments ACE American Council on Education ACE Automatic Calibration and Equalization ACE Automatic Calling Equipment ACEF Access Control Enforcement Function ACF Access Control Field ACF Advanced Communications Function ACF Advanced Communications Functions ACFA Advanced CMOS Frame Aligner ACFM Adobe Composite Font Metrics ACH Attempt per Circuit per Hour ACHEFT Automated ClearingHouse Electronic Funds Transfer ACI Access Control Information ACI Answer Controller Interface ACIA Asynchronous Communications Interface Adapter ACID Atomicity, Consistency, Isolation, Durability ACIS American Committee for Interoperable Systems ACK ACKnowledge ACK ACKnowledgment ACK Amsterdam Compiler Kit ACL Access Control List ACL Advanced Cmos Logic ACL Advanced Cmos Logic ACM Access Control Machine ACM Address Complete Msg. ACM Association for Computing Machinery ACMS Application Control Management System ACN Area Code Number ACO Acronym Control Officer ACOF Attendant Control Of Facilities ACP ACtion Point ACP Allied Communications Publication ACP Alter Content Presentation ACP Ancillary Control Program ACP Auxillary Control Process ACPDP Alternating Current Plasma Display Panel ACPM Association Control Protocol Machine ACROSS Automated Cargo Release and Operations Service System ACS Access ACS Access Control Set ACS Access Control Store ACS Access Control System ACS Advanced Communications System ACS Application Control Services ACS Asynchronous Communication Server ACS Australian Computer Science ACS Australian Computer Society ACS Automatic Clearing Houses ACSE Association Control Service Element ACSE Association Control Service Entity ACSNET Acedemic Computing Services NETwork ACSU Advanced t-1 Channel Service Unit ACT Application Center for Technology ACTFEL Alternating Current Thin Film ElectroLuminescent ACTPU ACTivate Physical Unit ACTS Advanced Communications Technology Satellite ACTS Automated Coin Toll Service ACTS Automatic Coin Telephone Service ACU Alarm Control Unit ACU Automatic Call Unit ACU Automatic Calling Unit ACW Alternating Continuous Waves AD ADdendum AD Activity Discard AD Administrative Domain AD Application Development AD Authorized Dealers ADA Activity Discard Acknowledgment ADA Automatic Data Acquisitions ADAPSO Association of Data Processing Service Organizations ADAS Advanced Directory Assistance System ADB A DeBugger ADB Apple Desktop Bus ADC Add with Carry ADC American Digital Cellular ADC American Display Consortium ADC Analog to Digital Converter ADC Analog to Digital Converter ADCCP Advanced Data Communication Control Procedure ADCCP Advanced Data Communications Control Procedure ADCI Automatic Display Call Indicator ADD Adapter Device Driver ADD Authorized Digital Dealers ADDCP Advanced Data Communication Control Procedure ADDMD ADministratve Directory Management Domain ADE Application Development Environment ADEW Andrew Development Environment Workbench ADF Access Decision Function ADF Application Development Facility ADF Automatic Direction Finder ADF Automatic Document Feed ADG Authorized Distributor Group ADI Access Decision Information ADI Anolog Device Inc ADI Application DIrectory ADI Autodesk Device Interface ADL Address Data Latch ADLAT Adaptive Lattice Filter ADM Adaptive Delta Modulation ADM Add-Drop MultiPlex ADM Additional Dealer Markup ADMA Advanced DMA Controller ADMD ADministration Management Domain ADN Abbreviated Dialing Number ADP Administrative Data Processing ADP Advanced Data Processing ADP Automatic Data Processing ADPCM Adaptive Differential Pulse Code Modulation ADR Address ADRS A Departmental Reporting System ADS Advanced Digital System ADS Application Development System ADS Audio Distribution System ADS Autocad Development System ADS Automatic Distribution System ADS Auxilliary Data System ADSC Address Status Changed ADSP Appletalk DataStream Protocol ADSR Attack, Decay, Sustain, Release ADT Abstract Data Type ADT Application Data Types ADTS Automated Digital Terminal System ADU Application Definition Utility ADU Automatic Dialing Unit AE Above or Equal AE Activity End AE Application Engineering AE Application Entity AE Application Environment AE Application Execution AEA Activity End Acknowledgment AEA American Electronics Association AEB Analog Expansion Bus AED Advanced Error Diffusion AEF Access Enforcement Function AEF Address Extention Facility AEGIS Advanced Electronic Guidance and Instrumentation System AEP Application Environment Profile AERM Alignment Error Rate Monitor AES Application Environment Specification AET Application Entity Title AF Address Family AF Address Field AF Audio Frequency AF Auxilary carry Flag AFACTS Automatic FACilities Test System AFADS Automatic Force Adjustment Data System AFATDS Advanced Field Artillery Tactical Data System AFC Automatic Flight Control AFC Automatic Font Change AFC Automatic Frequency Control AFCAC Air Force Computer Acquisition Center AFCC Air Force Communications Command AFE Analog Front End AFE Apple File Exchange AFI Appletalk Filing Interface AFI Authority and Format Identifier AFI Authority and Format Identifier AFII Association for Font Information Interchange AFIPS American Federation of Information Processing Societies AFM Adobe Font Metrics AFNOR Association Francaise de NORmalisation AFP Appletalk Filing Protocol AFS Andrew File System AFSC Air Force Systems Command AFSK Audio Frequency Shift Keying AFSK Automatic Frequency Shift Keying AFT Application File Transfer AFUU Association Francaise des Utilisateurs d'Unix AG Arcade Game AGC Automatic Gain Control AGEEE Above Ground Electronic Equipment Enclosures AGND Analog Ground AI Activate Indication (C/I channel code) AI Analog Input AI Application Interface AI Artificial Intelligence AI Authentication Identification AIA Aerospace Industries Association AIA Application Integration Architecture AIA Applications Integration Architecture AIAG Automotive Industry Action Group AIC Automatic Intercept Center AICC Automatic Intercept Communications Controller AIDDE Ames' Interactive Dynamic Display Editor AIFF Audio Interchange File Format AIIM Association for Information and Image Management AIMS Advanced Inventory Management System AIMS Auto Indexing Mass Storage AIOD Automatic Identificated Outward Dialing AIOD Automatic Identification Outward Dialing AIOD Automatic Identification of Outward Dialing AIPS Astronomical Image Processing System AIS Action Item System AIS Alarm Indication Signal AIS Alarm Indication Signals AIS Automatic Intercept System AISB Association of Imaging Service Bureaus AISP Association of Information Systems Professionals AITRC Applied Information Technologies Research Center AIU AI Upstream AIX Advanced Interactive eXecutive AK data AcKnowledge AL Application Layer ALAP AppleTalk-LocalTalk Link Access Protocol ALAP Appletalk LAP ALBO Automatic Line BuildOut ALC Arithmetic and Logic Circuits ALC Assembly Language Coding ALC Automatic Level Control ALC Automatic Load Control ALE Address Latch Enable ALFE Analog Line Front End ALGOL ALGOrithmic Language ALI Automatic Location Indentification ALIT Automatic Line Insulation Testing ALM Application Loadable Module ALM Asychronous Line Module ALM Asynchronous Line Multiplexer ALO At Least Once ALP Abstract Local Primitive ALR Advanced Logic Research ALRU Automatic Line Record Update ALS Advanced Launch System ALS Application Layer Structure ALS Automated List Service ALS Automated List Service ALS Automatic Line Switching ALU Application Layer User ALU Arithmetic Logic Unit AM Accounting Management AM Administrative Module AM Amplitude Modulation AMA Automatic Message Accounting AMACS Automatic Message Accounting Collection System AMARC Automatic Message Accounting Recording Center AMASE Automatic Message Accounting Standard Entry AMAT Automatic Message Accounting Transmitter AMAT Automatic Message Accounting Transmitter AMATPS Automatic Message Accounting TeleProcessing System AMATPS Automatic Message Accounting Transmitter Teleprocessing System AMC Add-on Module Connector AMC Area Management Center AMD Active Matrix Display AMD Advanced Micro Devices AMERITECH AMERican Information TECHnologies AMEX AMerican EXpress AMF Account Metering Function AMH Application Message Handling AMI Alternate Mark Inversion AMI American Megatrends Incorporated AMI American Microsystems Incorporated AMIS Atari Message and Information System AMLCD Active Matrix Liquid Crystal Display AMM Area Manufacturing Manager AMMA Advanced Memory Management Architecture AMP Active Monitor Present AMP Ampere AMPS Advanced Mobile Phone Service AMR Automatic Meter Reading AMSAT radio AMateur SATellite corp. AMT Active Memory Technology AMT Address Mapping Table AMVFT Amplitude Modulated Voice Frequency Telegraph AMWI Active Message Waiting Indicator AN Associated Number ANA Automatic Number Announcement ANAC Automatic Number Announcement Circuit ANC All Number Calling ANC American Network Communications ANCOVA Analysis of Covariance ANDF Architecture-Neutral Distribution Format ANF Automatic Number Forwarding ANI Automatic Number Identification ANIF Automatic Number Identification Failure ANM Answer Msg. ANOVA Analysis Of Variance ANS American National Standard ANS Answer Msg. ANSC American National Standards Committee ANSI American National Standards Institute ANTC Advanced Networked Test Center AO Analog Output AOC Advice of Charge AOCE Apple Open Collaboration Environment AOCS Attitude and Orbit Control System AOE Application Operating Environment AOJ Add one and do not Jump AOL America OnLine AOM Application OSI Management AOM Area Operations Manager AOQ Average Outgoing Quality AOS Acedemic Operating System AOS Add One and do not Skip AOS Add Or Subtract AOS Alternate Operator Service AOS Alternate Option Selection AOSS Auxilliary Operator Service System AOV Average Order Value AP Adjunct Processor AP Application AP Application Processor AP Attached Processor APA All Points Addressable APA All Points Addressable APA Arithmetic Processing Accelerator APACS Association for Payment And Clearing Services APAREN Address Parity Enable APC AMARC Protocol Converter APC Adaptive Predictive Coding APCI Application Protocol Control Information APCUG Association of PC User Groups APD Avalanche Photo Diode APDA Apple Programmers and Developers Association APDU Application Protocol Data Unit APE APplication Engineering APF All PIN's Fail API APplication Interface API Application Program Interface API Application Programming Interface APIA Application Program Interface Association APICS American Production and Inventory Control Society APL A Programming Language APM Advanced Power Management APP Application APP Application Portability Profile APP Applications Portability Profile APPC Advanced Peer-to-Peer Communication APPC Advanced Peer-to-Peer Communications APPC Advanced Program-to-Program Communication APPIX Automated Part and Product Information Exchange APPN Advanced Peer-to-Peer Networking APRIL APplication Rational Interface Logic APS Automatic Protection Switch APS Automatic Protection Switching System APSE ADA Programming Support Environment APSE Ada Programming Support Environment APSE Ada Programming Support Environment APSS Automatic Protection Switching System APT Address Pass Through APT Automatic Programmed Tools APU Auxiliary Power Unit AQ Accumulator-Quotient AQL Acceptable Quality Level AQS Automatic Quote System AR Activation Request AR Activity Resume AR Address Register AR Alarm Report ARA Attribute Registration Authority ARAMIS American Rheumatic Arthritis Medical Information System ARB Application Review Board ARC Advanced RISC Computing ARC Ames Research Center ARC Audio Response Controller ARC Audio Response Controller ARCA Advanced RISC Computing Architecture ARCNET Attached Resource Computer NETwork ARCOFI Audio Ringing Codec Filter ARCOFI-SP ARCOFI + SpeakerPhone function ARCOS ARCOFI Coefficient Support Program ARCOTI SIPB Telephone Module ARD AR Downstream ARD Application Remote Database ARDIS Advanced National Radio Data Service ARF Alarm Reporting Function ARG Argument ARIS Audichron Recorded Information System ARL Activation Request Local loop ARL Adjusted Ring Length ARLL Advanced Run Length Limited ARM Acorn Risc Machine ARM Activation Request Maintenance ARM Advanced RISC Machine ARM Area Revenue Manager ARM Asynchronous Response Mode ARMA Association of Records Managers and Administrators ARMS Amusement Records Management System ARN Activation Request ARP Abnormal Release Presentation ARP Address Resolution Protocol ARPA Advanced Research Projects Agency ARPANET Advanced Research Projects Agency NETwork ARPL Adjust Requested Privilege Level ARQ Automatic Repeat reQuest ARR Attributes for Requesting Relationships ARRL Amateur Radio Relay League ARS Alternate Route Selection ARS Automatic Route Selection ARSA Airport Radar Service Area ARSB Automated Repair Service Bureau ARTCC Air Route Traffic Control Center ARTEMIS Advanced Relay TEchnology MISsion ARTIC A Real-Time Interface Coprocessor ARU Activation Request Upstream ARU Audio Response Unit ARUP Abnormal Release User Presentation AS Activity Start AS Advanced Server AS Application System ASA American Standards Association ASAP Automatic Switching And Processing ASC Accredited Standards Committee ASC Additional Sense Code ASC Average System Cost or Average System Content ASCC Automatic Sequence-Controlled Calculator ASCC2 Advanced Serial Communication Controller ASCE Association Control Service Elements ASCII American Standard Code for Information Interchange ASCQ Additional Sense Code Qualifier ASD Advanced Semiconductor Development ASDC Abstract Service Definition Convention ASDSP Application-Specific Digital Signal Processor ASE Application Service Element ASE Applied Service Elements ASG Automated Sciences Group ASG Automated Sciences Group ASI Asynchronous SCSI Interface ASI Automatic System Installation ASIC Application Specific Integrated Circuit ASIS American Society for Industrial Security ASIT Advanced Security and Identification Technology ASK Amplitude Shift Keying ASM ASseMbler ASM Analog Subscriber Module ASM Association for Systems Management ASMP ASymmetrical Multi-Processing ASN Abstract Syntax Notation ASN Abstract Syntax Notation ASOC Administrative Service Oversight Center ASP ARCOFI Signal Processor ASP Abstract Service Primitive ASP Advanced Signal Processing ASP Advanced Signal Processor ASP Aggregated Switch Procurement ASP Appletalk Session Protocol ASP Association of Shareware Professionals ASPEN Automatic System for Performance Evaluation of the Network ASPI Advanced SCSI Programming Interface ASPS Advanced Signal Processing System ASR Abstract Selection Rules ASR Access Service Request ASR Access Service Request ASR Automatic Send-Receive ASR Automatic Speech Recognition ASRS Aviation Safety Reporting System ASSP Application Specific Standard Protocol AST Albert wong, Safi qureshy, Tom vu AST Applied System Technology AST Asyncronous System Trap ASV Average System Value ASYNC Asynchronous AT Access Tandem AT Advanced Technology AT Attention AT&T American Telephone and Telegraph ATA ARCNET Trade Association ATA AT Attachment ATA AT Bus Attachment ATA Automatic Trouble Analysis ATACC Advanced Tactical Air Command Central ATB All Trunks Busy ATB Advanced Technology Bomber ATB All Trunks Busy ATC Air Traffic Control ATC Atsugi Technical Center ATC Automatic Transmission Control ATD Asynchronous TDM ATD Authorized Terminal Distributor ATDM Asynchronous Time Division Multiplexing ATDP Attention Dial Pulse ATDRS Advanced Tracking and Data Relay Satellite ATDT Attention Dial Tone ATE Automatic Test Equipment ATE Automated Test Equipment ATF Advanced Technology Fighter ATG Advanced Technology Group ATH Abbreviated Trouble History ATH Attention Hang-Up ATI Automatic Test Inhibit ATI Awake TI ATIS Atherton Tools Interface Specification ATIS Automatic Terminal Information Service ATIS Automatic Transmitter Identification System ATIS Automatic Transmitter Identification System ATK Andrew ToolKit ATLATL AnyThing Lord to AnyThing Lord ATM Abstract Test Method ATM Adobe Type Manager ATM Advanced Test Methods ATM Analog Trunk Module ATM Asynchronous Transfer Mode ATM Automated Teller Machine ATM Automatic Teller Machine ATME Automatic Transmission Measuring Equipment ATMS Automated Trunk Measurement System ATN Automated Test Network ATOMS AT&t Optimized Materials Simulator ATP All Tests Pass ATP Appletalk Transaction Protocol ATP Application Transmission Processing ATP Available to Promise ATP2 AppleTalk Phase 2 ATR Alternate Trunk Routing ATR Attribute ATR Automatic Terminal Recognition ATRS Automated Trouble Reporting System ATS Abstract Test Suite ATS Administrative Terminal System ATS Apple Terminal Services ATS Automated Test System ATSE Application Timesharing Software Engineering ATTC Automatic Transmission Test and Control circuit ATTC Automatic Transmission Test and Control circuit ATTCOM American Telephone & Telegraph COMmunications ATTIS American Telephone & Telegraph Information Systems ATTN Attention ATTRIB Attribute AU Access Unit AU Adaptive Unit AU Arithematic Unit AUC AUthentication Certificate AUDIT Automated Data Input Terminal AUDIX AUDio Information eXchange AUI Access Unit Interface AUI Attachment Unit Interface AUI Attachment Universal Interface AUI Auxillary Unit Interface AUP Acceptable Use Policy AUP Access Unit Port AUTO Automatic AUTODIN AUTOmatic DIgital Network AUTOSEVCOM AUTOmatic SEcure Voice COMmunications AUTOVON AUTOmatic VOice Network AUX Apple UniX AUX Auxiliary AUXF AUXillary Frame AV AntiVirus AV AudioVisual AV AutoVisual AVA Attribute Value Assertion AVA Audio Visual Authoring AVC Audio Visual Connection AVD Alternate Voice Data AVG Average AVI Audio Visual Interleaved AVT Application Virtual Terminal AVT Architecture Verification Test AWACS Airborne Warnings And Control Systems AWG American Wire Guage AWI Awake Indication AWK alfred Aho, peter Weinberger, brian Kernighan AX Architecture Extended AX Automatic Transmission ALT ALTernate B Bit B Byte B&D Bondage and Discipline B&W Bells and Whistles B&W Black and White B/F Background/Foreground B/L Backlog B6ZS Bipolar with 6 Zero Subsitution B8ZS Binary 8 Zero Substitution B8ZS Bipolar with 8 Zeros Substitution B911 Basic 911 BA Basic Access BAC Basic Access Control BAD Broken As Designed BAI Bank Administration Institute BAK Binary Adaption Kit BAL Basic Assembly Language BAL Branch And Link BALUN BALanced UNbalanced BALUN BALanced to UNbalanced BAM Boyan Action Module BAMAF Bellcore AMA Format BANCS Bell Administrative Network Communications System BAPCO Bellsouth Advertising & Publishing COmpany BAPCO Business Aplication Performance COrp. BARRNET Bay Area Regional Research Network, "BARRNet" (SF Bay Area) BARTS Bell Atlantic Regional TimeSharing BAS Basic Activity Subset BASH Bourne Again Shell BASIC Beginner's All-purpose Symbolic Instruction Code BAUD Bits At Unit Density BBD0/1 Binary 0s or 1s detected in B and D channels BBN Bolt, Beranek and Newman BBS Bulletin Board System BBU Battery Back-Up BC Blind Copy BCC Blank Carbon Copy BCC Blind Carbon Copy BCC Blind Courtesy Copy BCC Block Check Character BCC Block Check Character BCC Blocked Call Cleared BCC Blocked Call Cleared BCCP Bearer CCP BCD Binary Coded Decimal BCD Blocked Call Delayed BCDIC Binary Coded Decimal Interchange Code BCDIC Binary Coded Decimal Interchange Code BCDIC Binary Coding Decimal Interchange Code BCG Business Center Group BCL Batch Command Language BCP Binary Communications Protocol BCP Business Communications Project BCP Byte Controlled Protocols BCPL Basic Combined Programming Language BCR Bell Communications Research BCR Byte Count Register BCS Basic Combined Subset BCS Batch Change Supplement BCS Binary Compatibility Standard BCS Boston Computer Society BCS Boston Computer Society BCS Boston Computer Society BCS British Computer Society BCUG Bilateral Closed User Group BDCS Broadband Digital Cross-Connect System BDF Binary Distribution Format BDF Bitmap Distribution Format BDOS Basic Disk Operating System BDS Basic Data Service BDS Building Distribution System BDT Billing Data Transmitter BDT Bulk Data Transfer BE Below or Equal BEAV Binary Editor And Viewer BECAUSE BEnchmark of Concurrent Architectures for their Use in Scientific Engineering BECN Backward Explicit Congestion Notification BEF Band Elimination Filter BEF Band Elimination Filter BEF Band Elimination Filter BEL Bell BELLCORE BELL COmmunications REsearch BER Basic Encoding Rules BER Bit Error Rate BERT Bit Error Rate Test BERT Bit Error-Rate Testing BEST Borland Enhanced Support and Training BETRS Basic Exchange Telecommunications Radio Service BF Bad Flag BF Bridge Function BFI Brute Force and Ignorance BFMI Brute Force and Massive Ignorance BFT Binary File Transmission BG/EEE Below Ground Electronic Equipment Enclosures BGE Branch if Greater or Equal BGEEE Below Ground Electronic Equipment Enclosures BGI Borland Graphic Interface BGP Border Gateway Protocol BGT Branch if Greater Than BHC Busy Hour Calls BHI Branch if Higher BHIS Branch if Higher or Same BI Backplane Interconnect BI Beginning Inventory BI Binary Input BI Bus Interconnect BIB Backward Indicator Bit BICS Building Industry Consulting Services BICU Bus Interface Control Unit BIF Binary Initialization File BIFF Binary Interchange File Format BIFIFO Bidirectional FIFO BILOS Brother-In-Law Of Stopgap BIM Basic Industry Marketing BIM Beginning of Information Marker BINAC Binary Automatic Computer BIND Berkeley Internet Name Daemon BIND Berkeley Internet Name Domain BIOS Basic Input/Output System BIPS Billion Instructions Per Second BIR Bit Receiver BIR Bus Interface Register BIS Business Information System BISDN Broadband ISDN BISDN Broadband ISDN (q.v.) [Telephony] BISP Business Information System Program BIST Built In Self Test BISYNC BInary SYNchronous Communications BIT Basic Interconnection Test BIT Binary digIT BIT Binary digit BIT Bipolar Integrated Technology BIT Bit Transmitter BITNET Because-It's-Time NETwork BITNIC BITnet Network Information Center BITR BIt TRansceiver BITS BSI Information Technology Services BITS Base Information Transfer System BITS Biotechnology Information Toolkit Software BIU Bus Interface Unit BIX Byte Information eXchange BJS Bureau of Justice Statistics BKSP Backspace BL Backlit BL/DS Busy Line/Don't Answer BLA Blocking Acknowledgement BLAS Basic Linear Algebra Subroutines BLAST BLocked ASynchronous Transmission BLDS Busy Line/Don't Answer, "BL/DS" BLDSC British Library Document Supply Centre BLE Branch if Less or Equal BLER Block Error Rate BLERT BLock Error Rate Test BLERT BLock Error Rate Test BLF Busy Lamp Field BLF Busy Line Feed BLF Busy Line Field BLIT Bell Labs Intelligent Terminal BLK Block BLMC Buried Logic Macrocell BLO Blocking BLOB Binary Large OBject BLOBS Binary Large OBjectS BLOS Branch if Lower Or Same BLS Bureau of Labor Statistics BLS Business Listing Service BLT BLock Transfer BLT Branch Less Than BLV Busy Line Verification BMC Basic Monthly Charge BMEWS Ballistic Missile Early Warning System BMI Branch if Minus BMIC BusMaster Interface Controller BMP Batch Message Processing Program BMP Benchmark Plan BMP BitMaP BMU Basic Measurement Unit BNC Bayonet N Connector BNC Bayonet Navy Connector BNC Bayonet Neill Concelman BNC British Naval Connectors BNE Branch if Not Equal BNET Berkeley NETworking BNF Bachus-Naur Form BNF Backus Normal Form BNF Big Name Fan BNM Blue Noise Mask BNR Bell National Research BNRCVUUCP Batch News ReCeive Via UUCP BNS Billed Number Screening BNT Broadband Network Termination BNU Basic Networking Utilities BO Binary Output BOA Bill of Aggregation BOA Blanket Order Agreement BOC Bell Operating Companies BOC Bell Operating Company BOF Beginning Of File BOIS Business Office Information Systems BOM Beginning Of Message BOMP Bill Of Materials Processor BOOTP Bootstrap Protocol BOP Bit Oriented Protocol BOP Byte Oriented Protocol BOR Basic Output Report BORPQU Borland Pro Quattro BORQU Borland Quattro BORSCHT Battery, Overvoltage, Ringing, Supervision, Coding, Hybrid, Testing BOS Basic Operating System BOS Bit Oriented Signaling BOS Business Office Supervisor BOS Business and Office Systems BOSE Business and Office Systems Engineering BOSIX Biin Open System Interface eXtension BOSS Billing and Order Support System BOT Beginning Of Table BOT Beginning Of Tape BP Base Pointer BPB BIOS Parameter Block BPI Bits Per Inch BPI Blocks Per Inch BPI Bytes Per Inch BPL Branch if PLus BPN comstar Business Plan BPOC Bell Point Of Contact BPS Bits Per Second BPS Bytes Per Second BPSK Binary Phase Shift Keying BPSS Basic Packet-Switching Service BQS Berkeley Quality Software BR Bad Register BR Bit Robbing BRA Basic Rate Access BRAT Business Residence Account Tracking system BRATS Business Residence Account Tracking System BRCS Business Residence Custom Service BRCS Business Residence Customer Service BRG Baud Rate Generator BRI Basic Rate Interface BRI Brain Response Interface BRIEF Basic Reconfigurable Interactive Editing Facility BRM Basic Remote Module BRS Bibliographic Research Service BRS Bibliographic Retrieval Service BRS Big Red Switch BS BackSpace BS Banded Signaling BSA Basic Service Arrangements BSA Basic Serving Arrangements BSA Business Software Alliance BSA Business Software Association BSAM Basic Sequential Access Method BSBH Busy Season Busy Hour BSC Binary Synchronous Communication BSC Binary Synchronous Communications BSC Business Service Center BSCM BiSynchronous Communications Module BSD Berkeley Software Distribution BSD Berkeley System Distribution BSE Basic Service Element BSE Basic Service Elements BSF Bit Scan Forward BSI British Standards Institute BSI British Standards Institution BSMTP Batch Simple Message Transport Protocol BSN Backward Sequence Number BSN Broadband Service Node BSOC Bell System Operating Company BSOC Bell Systems Operating Company BSP Bell System Practice BSP Bell Systems Practice BSR Bit Scan Reverse BSRFS Bell System Reference Frequency Standard BSRFS Bell Systems Reference Frequency Standard BSS Basic Synchronized Subset BSS Block Started by Symbol BST Basic Services Terminal BSTJ Bell System Technical Journal BSTJ Bell Systems Technical Journal BSW Boston Software Works BSY Busy BSYNC Binary SYNchronous Communications BT Bit Test BT British Telecom BT Bus Terminator BTAM Basic Telecommunications Access Message BTAM Basic Telecommunications Access Method BTC Bit Test and Complement BTE Broadband Terminal Equipment BTL Backplane Transceiver Logic BTL Bell Telephone Laboratories BTLZ British Telecom Lempel Ziv BTN Billing Telephone Number BTOA Binary TO Ascii BTP Batch Transfer Program BTR Bit Test and Reset BTS Bit Test and Set BTS Board Tracking System BTU British Thermal Unit BTZ Bundesant fur Zulassungen in der Telekommunikation BUF Buffer BUNCH Burroughs, Univac, NCR, Control data, Honeywell BUS Basic Utility System BUT Board Under Test BVA Billing Validation Application BVAPP Billing Verification and Authorization for Payment Process BVC Billing Validation Center BVS Basic Voice Service BWC BandWidth Compression BWM Block-Write Mode BWM Broadcast Warning Message BWOD BandWidth On Demand BWQ Buzz Word Quotient BWT Broadcast Warning TWX BWTS BandWidth Test Set BWTS BandWidth Test Set BX Base eXchange BYTE Binary Element C&ISM Consultant and Information Systems Marketing Group C&T Chips and Technologies C&T Communications & Tracking C-STEP Cultural,Societal,Technological,Economic,Political C/D Control Data C/I Command/Indicate C3CM Command, Control, and Communications Countermeasures C4I Command/Control/Communications/Computers/Intelligence CA CAble CA Collision Avoidance CA Computer Associates CABS Carrier Access Billing System CAC Calling-card Authorization Center CAC Canadian Advisory Committee CAC Carrier Access Code CAC Circuit Administration Center CAC Customer Administration Center CACM Communications of the Association for Computing Machinery CAD Computer Aided Design CAD Computer Aided Dispatching CAD Computer Aided Drafting CAD Computer-Aided Dispatch CADD Computer-Aided Design and Drafting CADV Combined Alternate Data/Voice CAE Common Application Environment CAE Common Applications Environment CAE Computer-Aided Education CAE Computer-Aided Engineering CAEM Computer Aided Engineering and Manufacturing CAF Compters & Acedemic Freedom CAFD Controllers Automatic Message Accounting Format Description CAFM Computer Aided Facilities Management CAG Column Address Generator CAI Call Assembly Index CAI Common Air Interface CAI Computer Aided Instruction CAI Computer Application Inc CAI Computer Assisted Instruction CAI Computer Associates International CAIS Collocated Automatic Intercept System CAIS Common ASPE Interface Specification CAL Computer Assisted Learning CAL Conversational Algebraic Language CALRS Centralized Automatic Loop Reporting System CALRS Centralized Automatic Loop Reporting System CALS Computer-aided Acquisition and Logistics Support CAM Computer Aided Management CAM Common Access Method CAM Communication Access Method CAM Computer-Aided Manufacturing CAM Content Addressable Memory CAM Control Administration Module CAMA Centralized Automatic Message Accounting CAMAC Computer Automated Measurement And Control CAMM Computer Assisted Material Management CAMP Coporate Association for Microcomputer Professionals CAN Campus Area Network CAN Cancel CANC Cancel CANMARC CANadian MARC CAP Central Arbitration Point CAP Columbia Appletalk Package CAP Computer Aided Publishing CAPD Computing To Assist Persons With Disabilities CAPP Computer Aided Process Planning CAPS Capitals (Upper Case Letters) CAPS Cassette Programming System CAPSL CAnon Printing System Language CAPTAIN Character And Pattern Telephone Access Information Network CAR Computer Access & Retrieval CAR Computer Aided Retrieval CAR Contents of the Address Register CARDS Central Archive for Reusable Defense Software CARL Colorado Alliance of Research Libraries CAROT Centralized Automatic Reporting On Trunks CAS Channel Associated Signaling CAS Circuit Associated Signaling CAS Column Address Select CAS Column Address Strobe CAS Communicating Application Specification CAS Communicating Applications Specification CAS Computer Aided Styling CAS Computerized Autodial System CAS Computerized Autodial System CAS Customer Administrative Services CASE Common Application Service Element CASE Computer Aided Software Engineering CASE Computer Aided Systems Engineering CASL Crosstalk Application Scripting Language CASS Computer Assisted Search Service CASSIS Classification and Search Support Information System CAT Computer Aided Testing CAT Computer Aided Tomography CAT Computer Aided Transcription CAT Computer Assisted Typesetter CAT Computer-Aided Telephony CAT Computer-Aided Tomography CAT Computer-aided Test CAT Concatenate CAT Craft Access Terminal CAT Craft Access Terminal CATIS Common Applications and Tools Integration Services CATIS Computer-Aided Tactical Information System CATLAS Centralized Automatic Trouble Locating and Analysis System CATV CAble TeleVision CATV Common Antenna TeleVision CATV Community Antenna TeleVision CAU Connection Arrangement Unit CAU Contolled Access Unit CAV Constant Angular Velocity CB Citizen's Band CBA Change Back Acknowledgement CBBS Computerized Bulletin Board System CBC Cipher Block Chaining CBCR Channel Byte Count Register CBD Change Back Declaration CBDS Connectionless Broadband Data Service CBEMA Computer & Business Equipment Manufacturers Association CBI Computer Based Instruction CBL Computer Based Learning CBM Commodore Business Machines CBMS Computer Based Messaging Systems CBO Continous Bitstream Oriented CBPXI Computer Private Branch Exchange Interface CBR Computer Based Reference CBS Common Bom System CBS CrossBar Switching CBT Computer Based Training CBW Convert Byte to Word CBX Computerized Branch Exchange CBX Computerized Business Exchange CC C Compiler CC Calling Card CC Carbon Copy CC Central Control CC Cluster Controller CC Common Channel CC Common Control CC Connection Confirm CC Cost Center CC Country Code CC Courtesy Copy CC Credit Card CC1 Call Control 1 CCA Common Cryptographic Architecture CCA Communications Control Architecture CCA Compatible Communications Architecture CCA Computer Content Architecture CCA Computer Corporation of America CCA Conceptual Communications Area CCBS Completion of Call to Busy Subscribers CCC Canadian Committee on Cataloging CCC Central Control Complex CCC Ceramic Chip Carriers CCC Clear Channel Capability CCC Command, Control, and Communications CCC Community Computer Center CCC Computer Control Center CCC Concourse Computer Center CCCCM CCC CounterMeasures CCCI Command, Control, Communications, and Intelligence CCD Cash Concentration and Disbursement CCD Charge Coupled Device CCD Charged-Coupled Device CCD Computer-Controlled Display CCD Customer Configuration Document CCEP Commercial Communications Endorsement Program CCFL Cold Cathode Fluorescent Lamp CCFT Cold Cathode Fluorescent Tube CCH Connections per Circuit per Hour CCI Computer Carrier Interrupt CCI Computer Consoles, Incorporated CCIA Computer and Communications Industry Association CCIP Continuously Computed Impact Point CCIR Comite' Consultatif International des Radio Communications CCIR Consultative Committee on International Radio CCIRN Coordinating Committee for Intercontinental Research Networking CCIS Common Channel Interoffice Signaling CCITT Comite' Consultatif International Telegraphique et Telephonique CCITT Consultative Committee on International Telegraphy and Telephony CCL Console Command Language CCM Customer Control Management CCNC CCs Network Control CCNC Common Channel Network Controller CCNC Computer Communications Network Center CCNC Computer/Communications Network Center CCOO Comprehensive Cost of Ownership CCP Call Control Part CCP Console Command Processor CCR Clock Configuration Register CCR Committment, Concurrency, and Recovery CCR Continuity Check Request CCR Customer-Controlled Reconfiguration CCRC Corrupt CRC CCRP Continuously Computed Release Point CCS Calling Card Service CCS Common Channel Signaling CCS Common Command Set CCS Common Communications Support CCS Hundred (C) Call Seconds CCS Hundred (C) Call Seconds CCS7 Common Channel Signalling (version #7) CCSA Common Central Switching Arrangement CCSA Common Control Switching Agreement CCSA Common-Control Switching Arrangement CCSS Common Channel Signalling System CCT CNMA Conference Testing CCT Central Control Terminal CCT Central Control Terminal CCT Cumulative Cycle Time CCTA Central Computer and Telecommunications Agency CCTAC Computer Communications Trouble Analysis Center CCTV Closed Circuit TeleVision CCU COLT Computer Unit CCU Communication Control Unit CCV Calling Card Validation CD Call Deflection (I.252 E) CD Capability Data CD Carrier Detect CD Change Directory CD Collision Detection CD Color Display CD Committee Draft CD Compact Disk CD Current Data CD-I Compact Disk - Interactive CD-R CD-ROM Recorder CD-RDx Compact Disk - Read Only Memory Data Exchange Standard CD-ROM Compact Disk - Read Only Memory CD-RTOS Compact Disk - Real Time Operating System CD-V Compact Disk - Video CD-WO Compact Disk - Write Once CDA Call Data Accumulator CDA Capability Data Acknowledgement CDA Coin Detection and Announcement CDA Compound Document Architecture CDA Compound Documents Architecture CDA Crash Dump Analyzer CDAR Customer Dialed Account Recording CDB Command Descriptor Block CDB Customer Distributed Buglist CDC Clark Development Company CDC Control Data Corporation CDCF Cumulative Discounted Cash Flow CDD Common Data Dictionary CDDI Copper Distributed Data Interface CDE Common Desktop Environment CDE Complex Data Entry CDE Cooperative Development Environment CDEV Control panel DEVice CDF Combined Distributing Frame CDF Context-Dependent File CDI Circle Digit Identification CDI Connected Line Identification CDIAC Carbon Dioxide Information Analysis Center CDIF Case Data Interchange Format CDL Computer Design Language CDMA Code-Division Multiple Access CDO Community Dial Office CDOS Concurrent Disk Operating System CDPD Celluar Digital Packet Data CDPR Customer Dial Pulse Receiver CDPT Celluar Digital Packet Technology CDR Call Detail Record CDR Call Detail Recording CDR Call Dial Rerouting CDR Call Dial Routing CDR Collision Detect input line CDR Compact Disk Reader CDR Contents of the Decrement Register CDR Contents of the Decrement part of the Register CDRL Contract Data Requirements List CDS Circuit Design System CDS Conceptual Data Store CDS Craft Dispatch System CDS Current Directory Structure CDT Call Data Transmitter CDU Control Display Unit CD_CHRDY CarD CHannel ReaDY CE Cache Enable CE Chip Enable CE Collision Elimination CE Communications Entity CE Conducted Emission CE Convert Enable CEF Cable Entrance Facility CEG Continuous Edge Graphics CEI Comparably Efficient Interconnection CEI Conducted Electromagnetic Interference CEI Connection End-Point Identifier CEN Comite Europeen de Normalisation CENELEC CEN Electrotechnique CENTREX CENTRalized EXchange CEO Comperhensive Electronic Office CEOI Communications-Electronic Operating Instructions CEP Communications End Point CEP Connection Endpoint CEPT Conference of European Postal and Telecommunications CERFnet California Education and Research Federation Network CERN Conseil Europeenne pour la Recherche Nucleaires CERT Computer Emergency Response Team CERT/CC Computer Emergency Response Team/Coordination Center CES Computer Election Systems CES Consumer Electronics Show CET Computer-Enhanced Telephony CEV Control Environmental Vault CEV Controlled Environment Vault CEVI Common Equipment Voltage Indicator CEVI Computer Equipment Voltage Indicator CF Coin First CF Conversion Facility CFB Cipher Feedback CFB Color Frame Buffer CFCA Communications Fraud Control Association CFD Computational Fluid Dynamics CFI Configurable Interface CFM Cubic Feet per Minute CFNR Call Forwarding No Reply CFP Call Forwarding Busy CFR Code of Federal Regulations CFU Call Forwarding Unconditional CGA Color Graphics Adapter CGB Circuit Group Blocking CGBA Circuit Group Blocking Acknowledgement CGCT Compagnie Generale de Constructions Telephoniques CGI Color Graphics Interface CGI Computer Generated Images CGI Computer Graphics Interface CGM Computer Graphics Metafile CGN Concentrator Group Number CGU Circuit Group Unblocking CGUA Circuit Group Unblocking Acknowledgement CHAP CHAnnel Processor CHAR CHARacter CHARGEN CHARacter GENerator CHAT Conversational Hypertext Access Technology CHCK CHannel ChecK CHGRP CHange GRouP CHILL CCITT HIgh-Level Language CHIP Communications Handbook for Intelligence Planners CHIPS Clearing House Interbank Payments System CHKDSK CHecK DiSK CHMOD CHange MODe CHOTS Corporate Headquarters Office Technology System CHOWN CHange OWNer CHP ChaPter CHR CHaRacter CI Computer Interconnect CI Cluster Interconnect CI Connect Indication CIA Central Intelligence Agency CIAC Computer Incident Advisory Capability CIB Console Interface Board CIC CSNET Information Center CIC Carrier Identification Code CIC Carrier Identification Codes CIC Circuit Identification Code CIC Coordination and Information Center CICS Customer Information Control System CICS Customer Information Control System [IBM] CICS/VS Customer Information Control System/Virtual Storage CID Caller ID CID Charge Injection Device CID Computer Integrated Design CID Connection Identification CIDIN Common Icao Data Interchange Network CIE Commission Internationale d'Eclairage CIE Consumer Initiated Entry CIF Caltech Intermediate Form CIF Common Intermediate Format CIGOS Canadian Interest Group on Open Systems CII Call Identity Index CIM CompuServe Information Manager CIM Computer Integrated Manufacturing CIMITI Centre for Information Management and Information Technology Innovation CIMT Computer Integrated Manufacturing and Technology CIO Chief Information Officer CIOCS Communication Input/Output Control System CIP Command Interface Port CIP Control Interface Port CIR Committed Information Rate CIR Computer Integrated Research CIRC Circular Reference CIRCA Center for Instructional and Research Computing Activities CIRIS Consolidated Intelligence Resources Information System CIRR C/I Receive Register CIRU Computer Industry Research Unit CIS Card Information Structure CIS Commercial Instruction Set CIS Compuserve Information Service CIS Computer Information Systems CIS Customer Intercept Service CIS Customized Intercept Service CISA Certified Information Systems Auditor CISC Complex Instruction Set Chip CISC Complex Instruction Set Computer CISC Complex Instruction Set Computing CIT California Institute of Technology CIT Case Institute of Technology CIT Computer Integrated Telephony CIU Computer Interface Unit CIX Commercial Internet eXchange CIXR C/I Transmit Register CK Checkbits CKD Count Key Data CKS Clock select bit CL Connection-Less mode CL ConnectionLess CL Connectivity Language CL-TK CLaim ToKen CLAR Channel Local Address Register CLASP Comprehensive Logistics Automated Support Program CLASS Centralized Local Area Selective Signaling CLASS Custom Local Area Signaling Service CLASS Custom Local Area Signaling System CLC CLear Carry CLC Canon Laser Copier CLD CLear Direction CLDN Calling Line Directory Number CLEF Certified Licensed Evaluation Facility CLEI Common-Language Equipment Identification CLI CLear Interrupt CLI Call Level Interdace CLI Calling Line Identification CLI Command Line Interface CLI Command Line Interpreter CLID Calling Line IDentification CLIP Calling Line Identification Presentation CLIR Calling Line Identification Restriction CLIST Command LIST CLK CLocK CLLI Common-Language Location Identification CLLM Consolidated Link-Layer Management CLM Career Limiting Move CLNP ConnectionLess Network Protocol CLNP ConnectionLess Network Protocol CLNP Connectionless-mode Network Protocol CLNS ConnectionLess Network Service CLNS Connectionless-mode Network Service CLOS Common Lisp Object System CLP Country List Price CLR Combined Line and Recording CLRC Circuit Layout Record Card CLS CLear Screen CLS ConnectionLess Server CLS Connectless-Mode Service CLT Communications Line Terminal CLTP Connectionless Transport Protocol CLTS CLear Task Switch CLTS ConnectionLess Transport Service CLUT Color LookUp Table CLV Constant Linear Velocity CM Command Module CM Configuration Management CM Connection Memory CM Control Mark CM Corrective Maintenance CMA Cash Management Account CMA Communications Managers Assocation CMA Concert Multi-thread Architecture CMAC Centralized Maintenance and Administration Center CMAS Central Massachusetts Administrative Services CMC Call Modification Completed CMC Carry-in Monthly Charge CMC Cellular Mobile Carrier CMC Common Mail Calls CMC Communication Machinery Corp. CMC Communication Machinery Corporation CMC Communication Mangement Configuration CMC Complement Carry Flag CMC Construction Maintenance Center CMC Construction Maintenance Center CMCC Central Mission Control Centre CMD Centralized Message Distribution CMDF Combined Main Distributing Frame CMDS Centralized Message Data System CMI Computer Managed Instruction CMIP Common Management Information Protocol CMIS Common Management Information Service CMIS Common Management Information Services CMISE Common Management Information Service Element CML Current Model Logic CMMU Cache/Memory Management Unit CMOL CMIP Over LLC CMOS Complementary Metal-Oxide Semiconductor CMOS Complimentary-symmetry Metal-Oxide Semiconductor CMOT CMIP Over TCP/IP CMP CoMmunications Plenum CMP Compare CMP Computer CMP Cooperative Marketing Partner CMP Cooperative Marketing Program CMPS CoMPare String CMR Call Modification Request CMR CoMmunications Riser CMRJ CMR reject CMRR Common Mode Rejection Ratio CMRR Common Mode Rejection Ratio CMS Call Management System CMS Circuit Maintenance System CMS Code Management System CMS Color Management System CMS Communications Management Subsystem CMS Compiler Monitor System CMS Conversation Monitor System CMS Conversational Monitor System CMS Conversational Monitoring System CMS Creative Music Systems CMT Cellular Mobile Telephone CMU COLT Measurement Unit CMU Carnegie-Mellon University CMW Compartmented Mode Workstation CMY Cyan-Magenta-Yellow CMYK Cyan-Magenta-Yellow-blacK CN Change Notice CN CoNect CN Connection CN Country Name CN/A Customer Name/Address CNA Certified Netware Administrator CNA Communications Network Application CNAB Customer Name/Address Bureau CNC CoNCentrator CNC Computer Numerical Control CNC Computerized Numerical Control CNCC Customer Network Control Center CNCP Canadian National Canadian Pacific CNE Certified Netware Engineer CNG CalliNG CNI Certified Netware Instructor CNI Common Network Interface CNM Communications Network Management CNMA Communications Network for Manufacturing Applications CNMS Cylink Network Management System CNMS Cylink Network Management System CNR Carrier to Noise Ratio CNRCVUUCP Compressed News ReCeive Via UUCP CNS Complimentary Network Service CNVT Convert CO Central Office CO Command Output CO Connection-Oriented CO Convert Out CO Customer Owned COA Change Over Acknowledgement (SS7: in MTP) COAM Customer Owned And Maintained COBOL COmmon Business-Oriented Language COBRA Common OBject Request Association COC Central Office Connection COC Circuit Order Control COC Circuit Order Control COC Corporate Operations Committee COCOT Customer-Owned Coin-Operated Telephone CODASYL Conference On DAta SYstems Languages CODCF Central Office Data Connecting Facility CODEC COder-DECoder CODLS COnnection-mode Data Link Service COE Central Office Equipment COEES Central Office Equipment Engineering System COEM Commercial Original Equipment Manufacturer COER Central Office Equipment Report COFF Common Object File Format COGO COordinate GeOmetry COIN Columbia Online Information Network COINS Community Online Intelligence System COLD Computer Output to Laser Disk COLP Connected Line Identification Presentation COLR Connected Line Identification Restriction COLT Central Office Line Tester COM Common Object Model COM Computer Output (on) Microfiche COM Computer Output (on) Microfilm COM/EXP Compander/Expander COMAS Central Office Maintenance and Administration System COMBS Customer-Oriented Message Buffer System COMDEX COMputer Dealer's EXposition COMIREX Committee on Imagery Requirements and Exploitation COMM Communications COMPUSEC COMPUter SECurity COMS Complementary Metal Oxide Semiconductor COMSAT COMmunications SATellite COMSEC COMmunication SECurity COMSTAR Common System for Technical Analysis & Reporting CON Central Office News CON Console CONF Conference Calling CONFIG Configuration CONN CONNector CONN Connect Msg. CONP Connection-Oriented Network Service CONS CONStruct CONS Connection Oriented Network Services CONS Connection-Oriented Networking Service CONS Connection-Oriented Networking Session CONTAC Central Office NeTwork ACcess CONTACT Central Office Network Access CONUS CONtinental United States COO Change Over Order COOL COBOL Object Oriented Language COP Call Offering Procedure COP Character-Oriented Protocol COPIS Corporate Planning Information System COPP Connection-Oriented Presentation Protocol COPS Computer Oracle and Password System COPS Connection-Oriented Presentation Service COR Confirmation Of Receipt CORA Canadian OSI Registration Authority CORBA Common Object Request Broker Architecture CORC Commands and Responses Definition and Compressing Program (IOS) CORE COntrolled Requirement Expression CORN COmputer Resource Nucleus CORNET CORporate NETwork COS Central Office Switch COS Class Of Service COS Compatible Operating System COS Connection-Mode Service COS Corporation for Open Systems COSAC Canadian Open Systems Applications Criteria COSE Common Open System Environment COSINE Cooperation for Open Systems Interconnection Networking in Europe COSMIC COmmon System Main InterConnecting frame COSMIC COmmon Systems Main InterConnection frame system COSMIC COmputer Software Management and Information Center COSMIC COmputer Software Management and Information Center COSMIC COmputer Software Management and Information Center COSMIC Common System Main InterConnection COSMIC Common Systems Main InterConnection COSMOS COmputer System for Mainframe OperationS COSMOS COmputerized System for Mainframe OperationS COSS Common Object Services Specification COSSS Committee on Open Systems Support Services COT Card Or Tape COT Central Office Terminal COT Central Office Terminal COT Central Office Terminal COT Continuity COTP Connection-Oriented Transport Protocol COTS Commercial Off The Shelf COTS Connection-Oriented Transport Service CP CoPy CP Command Processor CP Connect Presentation CP Consumer Premises CP Control Program CP Copy Protected CP/M Control Program Master CP/M Control Program for Microcomputers CPA Centralized/Bulk Power Architecture CPA Communications & Public Affairs, "C&PA" CPAV Central Point AntiVirus CPC Cellular Phone Company CPC Circuit Provisioning Center CPD Central Pulse Distributor CPD Common Packet Data Channels CPE Central Processing Element CPE Customer-Premises Equipment CPE Customer-Provided Equipment CPF Control Program Facility CPFF Cost Plus Fixed Fee CPFM Continous Phase Frequency Modulation CPG Call Progress CPG Clock Pulse Generator CPH Cost Per Hour CPI Characters Per Inch CPI Clock Per Instruction CPI Common Programming Interface CPI Computer to PBX Interface CPIO CoPy In/Out CPIW Costumer Provided Inside Wiring CPL Characters Per Line CPL Combined Programming Language CPL Current Privilege Level CPM Cost Per Minute CPM Critical Path Method CPMP Carrier Performance Measurement Plan CPN Compuserve Packet Net CPO Corporate Product Operations CPO Customer Premises Equipment CPP Cable Patch Panel CPP Connect Presentation Accept CPP Corporate Planning Process CPQ Compaq CPR Connect Presentation Reject CPS COS/POSI/SPAG CPS Characters Per Second CPS Characters Per Second CPSR Computer Professionals for Social Responsibility CPU Central Processing Unit CQ Call to Quarter CQ Change of Quarters CQ Charge of Quarters CQM Circuit Group Query CQR CQM Response CR Carriage Return CR Connect Request CR Control Response CRAM Card Random Access Memory CRAS Cable Repair Administrative System CRC Customer Record Center CRC Cyclic Redundancy Check CRC Cyclical Redundancy Character CRCOK CRC OK CRD Customer Required Date CRED Credit Card Calling (I.256 A) CREF Connection Refused CREG Concentrated Range Extension & Gain CREG Concentrated Range Extension with Gain CREN Corporation for Research and Educational Networking CRF Communication Related Function CRF Cross Reference File CRFMP Cable Repair Force Management Plan CRG Central Resource Group CRI Cray Research, Inc. CRIN Centre de Recherche en Informatique de Nancy CRIS Customer Record Information Service CRIS Customer Record Information System CRISP Complex-Reduced Instruction Set Processor CRITICOMM Critical Intelligence Communications CRL Ceter for Research Libraries CRLF Carriage Return/Line Feed CROM Control Read Only Memory CRONIC Colorado Rudimentary Operating Nucleus for Intelligent Controllers CROTCH Computerized Routine for Observing and Testing the Channel Hardware CRS Centralized Results System CRSAB Centralized Repair Service Answering Bureau CRT Cathode Ray Tube CRTC CRT Controller CRTC Canadian Radio-television and Telecommunications Commission CRUD Create Retrieve Update and Delete CS Cable Switching CS Chip Select CS Clear to Send CS Code Segment CS Computer Science CS Computing Science CS Conducted Susceptibility CS Coordinated Single-layer CSA Canadian Standards Association CSA Canadian Standards Association CSA Carrier Servicing Area CSA Carrier Serving Area CSA Client Service Agent CSA Customer Service Administration CSAB Computer Science Accreditation Board CSAB Computing Sciences Accreditation Board CSACC Customer Service Administration Control Center CSACS Centralized Status, Alarm and Control System CSAR Centralized System for Analysis Reporting CSAR Channel System Address Register CSC Cell Site Controller CSC Computer Science Corporation CSC Computer Sciences Corporation CSC Customer Support Center CSDC Circuit Switched Digital Capability CSDN Circuit-Switched Data Network CSE Common Subexpression Elimination CSE Coordinated Single-layer Embedded CSG Constructive Solid Geometry CSG Consulting Services Group CSG Corporate Systems Group CSI Commercial System Integration CSI Commercial Systems Integration CSI Computer Security Institute CSIC Costumer Specific IC CSIS Canadian Security and Intelligence Service CSL Coin Supervising Link CSL Computer Sensitive Language CSL Computer Systems Laboratory CSM Command and Service Module CSM Computer Systems Manufacturing CSMA Carrier Sense Multiple Access CSMA Carrier Sense Multiple Access CSMA/CA Carrier Sense Multiple Access/Collision Avoidance CSMA/CD Carrier Sense Multiple Access/Collision Detection CSMA/CP Carrier Sense Multiple Access/Collision Prevention CSMC Communications Services Management Council CSN Circuit-Switched Network CSN Computer Systems News CSNET Computer Science NETwork CSO Central Services Organization CSO Cold Start Only CSO Complimentary Solutions Organization CSO Computing Services Office CSOC Consolidated Space Operations Center CSP Coin Sent Paid CSP Commercial Subroutine Package CSP CompuCom Speed Protocol CSP Control Switching Point CSP Cross System Product CSPDN Circuit-Switched Public Data Network CSPP Computer Systems Policy Project CSR Clock Shift Register CSR Control and Status Register CSR Customer Service Records CSR Customer Service Representative CSRG Computer Systems Research Group CSRI Computer Systems Research Institute CSS Computer Special Systems CSS Computer Sub-System CSS Conceptual Signaling and Status CSS Continuous System Simulation CSS Controlled Slip Second CSS Customer Switching System CSSE Computer Services System Engine CSSFE Controlled Slip Second Far End CSSG Customer Service Solutions Group CST Change State CST Current State CST Call State CSTA Computer-Supported Telephony Applications CSTO Computer Systems and Technology Office CSU Channel Service Unit CSV Comma Separated Value CT Call Transfer CT Circuit Time CT Computed Tomography CT Conference Testing CT Current Transformer CTC Central Test Center CTC Centralized Traffic Control CTC Chu-Itoh Techno-Science Co. CTD Computing and Telecommunications Division CTD Cumulative Transit Delay CTERM Command TERMinal CTM Contact Trunk Module CTM Contac Trunk Module CTM Current Transformation Matrix CTMC Communications Terminal Module Controller CTMS Carrier Transmission Measuring System CTNE Compania Telefonica Nacional de Espana CTO Call Transfer Outside CTOS Computerized Tomography Operating System CTOS Convergent Technologies Operating System CTPA Coax-to-Twisted-Pair Adapter CTRL Control CTS Cartridge Tape Subsystem CTS Clear To Send CTS Compatible Timesharing System CTS Configuration Technical Specialists CTS Conformance Testing Services CTS-LAN CTS Local Area Network CTS-WAN CTS Wide Area Network CTSS Chameleon Time-Sharing System CTSS Compatible Time Sharing System CTSS Cray Time Sharing System CTSS Cyber Time-Sharing System CTT Cartridge Tape Transport CTTC Cartridge Tape Transport Controller CTTN Cable Trunk Ticket Number CTV Canadian TeleVision network CTY Console TeletYpe CU Control Unit CU Customer Unit CU/TK Common Update/EQuipment system CUA Common User Access CUB Cursor Backward CUCRIT Capital Utilization CRITeria CUD Cursor Down CUF Cursor Forward CUG Closed User Group CUI Character based User Interface CUI Common User Interface CUNBATCH Compressed news UNBATCH CUP Cursor Position CUPID Completely Universal Processor I/O Design CUSP Commonly Used System Program CUT Coordinated Univeral Time CUU Cursor Up CV Code Violation CVCP Code Violation, CP-bit Parity CVCRC Code Violation, Cyclic Redundancy Check CVF Compressed Volume File CVFE Code Violation, Far End CVGA Color Video Gaphics Array CVIA Computer Virus Industry Association CVP Code Violation, P-bit CVR Compass Voice Response CVT Continuous Variable Transmission CW Call Waiting CW Continuous Wave CWARC Canadian Workplace Automation Research Centre CWC City-Wide Centrex CWD Call Waiting Deluxe CWD Convert Word to Double Word CWI Centrum voor Wiskunde en Informatica CXI Common X-windows Interface CYL Cylinder CYMK Cyan-Yellow-Magenta-Black C^3 Command, Control, and Communications C^3M CCC CounterMeasures D-CTL D Channel Controller (IDEC) D/A Digital to Analog D/R Direct or Reverse D2T2 Dye Diffusion Thermal Transfer DA Directory Assistance DA Desk Accessory DA Destination Address DA Don't Answer DA/C Directory Assistance/Computerized DA/M Directory Assistance/Microfilm DAA Data Access Arrangement DAA Decimal Adjust for Addition DAC Design Automation Conference DAC Digital to Analog Converter DAC Drive Array Controller DAC Dual Attachment Concentrator DACC Directory Assistance Call Completion DACCS Digital Access Cross Connect System DACD Directory Access Control Domain DACK DMA ACK DACOM Data Communictions DACS Digital Access Cross-connect System DACS Directory Assistance Charging System DACS Digital Access Control Domain DAD Database Action Diagram DAD Digital Audio Disc DAD Draft ADdendum DAEDR Delimitation, Alignment and Error Detection Procedure DAEMON Disk And Execution MONitor DAF Directory Authentication Framework DAF Distributed Application Framework DAG Defense Agencies Group DAIS Distributed Automatic Intercept System DAIS Defense Automatic Integrated System DAL Data Access Language DAL Dedicated Access Line DAL Disk Access Lockout DAM Data Acquisition and Monitoring DAML Digital Added Main Line DAMP Demand Analysis Manufacturing Planning DAMQAM Dynamically Adaptive Multicarrier Quadrature Amplitude Modulation DAN Departmental Area Network DAO Directory Assistance Operator DAP Data Access Protocol DAP Directory Access Protocol DAP Division Advisory Panel DAP Document Application Profile DAP Document Authentication Framework DARC Division Alarm Recording Center DARPA Defense Advanced Research Project Agency DARPA Defense Advanced Research Projects Agency DARU Distributed Audio Response Unit DARU Distributed Automatic Response Unit DAS Decimal Adjust for Subtraction DAS Device Access Software DAS Directory Assistance System DAS Disk Array Subsystem DAS Distributor And Scanner DAS Dual Attached Studio DAS Dual Attachment Station DAS-WAT Distributor And Scanner - Watch Dog Timer DASD Direct Access Storage Device DASH Dell Advanced SCSI Host DASP Digital Assisted Services Program DASS2 Digital Access Signaling System 2 DAT Duplicate Address Test DATACOM Data Communications DAV Data Above Voice DB Decibel DB Data Buffer DB DataBase DB Decibel DB Dial Box DB2 Database 2 DBA Data Base Administrator DBA Adjusted Decibels DBA Data Base Administrator DBA Digital Business Architecture DBAC Data Base Administration Center DBAS Data Base Administration System DBC Digital Business Center DBC Double Byte Code DBCS Data Bank Control System DBF DBase Format DBM DataBase Manager DBME DataBase Managment Environment DBMS DataBase Management System DBOS Data Bank Organization System DBP Deutsche BundesPost DBRAD Data Base Relational Application Directory DBS Duplex Bus Selector DBS Data Base Server DBSS Data Bank Security System DC Data Cartridge DC Data Collection DC Data Communication DC Data Control DC Device Confirmation DC Direct Current DC Disconnect Confirmation DCA Defense Communications Agency DCA Digital Communications Associates DCA Distributed Communication Architecture DCA Distributed Communications Architecture DCA Document Content Architecture DCAF Distributed Console Access Facility DCASR Defense Contract Administration Services Region DCB Disk Coprocessor Board DCC Data Collection Computer DCC Data Communications Channel DCC Data Country Code DCC Descriptive Cataloging Committee DCC Digital Compact Cassette DCC Digital Customer Center DCC Display Combination Code DCCO Defense Commercial Communications Office DCCS DisContiguous Shared Segments DCD Data Carrier Detect DCE Data Circuit Terminal Equipment DCE Data Circuit-terminating Equipment DCE Data Communication Equipment DCE Data Communications Equipment DCE Distributed Computing Environment DCE Distributed Computing Equipment DCF Data Communication Facility DCF Data Communications Function DCF Data Count Field DCH D-Channel Handler DCH D-Channel Handling bit DCI Desktop Color Imaging DCL DEC Command Language DCL DEC Control Language DCL Data Clock DCL Declaration DCL Device Clear DCL Digital Command Language DCL Digital Control Logic DCLU Digital Carrier Line Uint DCM Digital Carrier Module DCME Digital Circuit Multiplexing Equipment DCMS Distributed Call Measurement System DCMU Digital Concentrator Measurement Unit DCN Data Communication Network DCNA Data Communication Network Architecture DCO Document Change Order DCO-CS Digital Central Office-Carrier Switch DCP Duplex Central Processor DCP Data Collection Processor DCP Demand for Critical Parts DCP Distributed Communications Processor DCP Duplex Central Processor DCPR Detailed Contuing Property Record DCPSK Differential Coherent Phase-Shift Keying DCS Data Collection System DCS Data Communications Subsystem DCS Data Control System DCS Defined Context Set DCS Digital Cross-connect System DCS Distributed Computer System DCS Distribution Control System DCSS Digital Customized Support Services DCSS Discontiguous Shared Segments DCT Digital Carrier Trunk DCT Discrete Cosine Transfer DCTN Defense Commercial Telecommunications Network DCTS Dimension Custom Telephone Service DCU Digital Credit Union DCn Device Control n DD Data Dictionary DD Data Directory DD Data Downstream DD Day DD Digital Display DD Disk Drive DD Double Density DDA Digital Differential Analyzer DDA Disk Drive Adaptor DDA Domain Defined Attribute DDB Device Dependent Bitmap DDBMS Distributed DBMS DDC Direct Department Calling DDC Digital Data Converter DDCMP Digital Data Communication Message Protocol DDCMP Digital Data Communications Message Protocol DDCP Direct Digital Color Proofing DDCU DC-to-DC Converter Unit DDD Direct Distance Dialing DDE Direct Data Entry DDE Dynamic Data Exchange DDE Dynamic Data Exchange DDEML Dynamic Data Exchange Management Library DDF Data Description File DDFII Data Description File for Information Interchange DDH Digital Distributed Hardware DDI Direct Dialing-In DDIF Digital Document Interchange Format DDK Driver Development Kit DDL Data Definition Language DDL Data Description Language DDL Document Description Language DDM Distributed Data Management DDN Defense Data Network DDOV Digital Data Over Voice DDP Datagram Delivery Protocol DDP Distributed Data Processing DDPEX Device Dependent PEX DDR Data Descriptive Record DDS Dataphone Digital Service DDS Design Data Sheet DDS Digital Data Service DDS Digital Data Storage DDS Digital Data System DDS Digital Dataphone Service DDS Digital Distributed Software DDS Direct Digital Service DDS Document Distribution Services DDT DEC Debugging Tape DDT Dynamic Debugging Technique DDX Device Dependent X-windows DDX Distributed Data eXchange DDX Digital Data eXchange DE Data East DE Disk Enclosure DEA Data Encryption Algorithm DEAC Deactivation DEBNA Digital Ethernet BI Network Adapter DEC Digital Equipment Corporation DEC Decrement DEC Device Clear DECDTM Digital Distributed Transaction Manager DECNMS Digital Network Measurement System DECT Digital European Cellular Telephone DECTP Digital Transaction Processing DECUS Digital Equipment Computer Users Society DECUS Digital Equipment Corporation Users Society DEL DELete DELNI Digital Ethernet Local Network Interconnect DELQA Digital Ethernet Lowpower Q-bus network Adapter DELUA Digital Ethernet Lowpower Unibus network Adapter DEM Digital Elevation Model DEMA Data Entry Management Association DEMPR Digital Ethernet Multi-Port Repeater DEPCA Digital Ethernet Personal Computer-bus Adapter DEQNA Digital Ethernet Q-bus Network Adapter DER Distinguished Encoding Rules DEREP Digital Ethernet REPeater DERP Defective Equipment Replacement Program DES Data Encryption Standard DES Data Entry Sheet DES Distributed End System DESPR Digital Ethernet Single Port Repeater DESTA Digital Ethernet thin-wire STation Adapter DET Detatch Msg. DET Device Execute Trigger DET Direct Entry Table DEUNA Digital Ethernet Unibus Network Adapter DEV Device DEW Distant Early Warning DEXEC Diagnostic EXEc software DF Data Field DF Destination Field DF Device Flag DF Direction Finding DF Distributing Frame DF Don't Fragment DF Double Flag DFA Design for Assembly DFC Data Flow Control DFD Data Flow Diagram DFDSM Data Facility Distributed Storage Manager DFE Data Flow Editor DFI Digital Facility Interface DFM Design for Manufacturing DFMS Digital Facility Management System DFN Deutsche Forschungsnetz Verein DFR Document Filing and Retrieval DFS Depth-First Search DFS Distributed File System DFT Design for Test DFT Diagnostic Function Test DFT Discrete Fourier Transform DFT Distributed Function Terminal DFU Data File Utility DG Data General DGA Direct Graphics Access DGIS Direct Graphics Interface Standard DGP Dissimilar Gateway Protocol DHA Destination Hardware Address DI Data In DI Deactivation Indication DI Destination Index DIA Defense Intelligence Agency DIA Document Interchange Architecture DIA Document Interchange Architecture DIAD magnetic Drum Information Assembler / Dispatcher DIAL Digital Idle Asset Listing DIAL Direct Information Access Line DIANE Digital Integrated Attack Navigator Equipment DIAS Defense Automatic Integrated System DIB Device Independant Bitmap DIB Dictionary Information Base DIB Directory Information Bases DIBOL DEC Business Oriented Language DIBOL DIgital coBOL DIBOL Digital Business Oriented Language DIC Digital Interface Controller DIC Digital Concentrator DIC Digital Interface Controller DID Direct Inward Dialing DID DI Downstream DID Destination IDentification DIF Digital Interface Frame DIF Data Interchange Format DIF Digital Interface DIF Digital Interface Frame DIF Display Information Facility DIF Document Interchange Format DIF Documentation Interchange Format DIF Dual Inline Flatpack DIFFSENS Differential Sense DIFMOS Double Injection Floating Gate MOS DIIP Direct Interrupt Identification Port DIL Dual InLine DILOG DIstributed LOGic DIM Data In the Middle DIM Demand Integration Meeting DIMA Data Information Management Architecture DIMS Document Image Management System DIMS Document Imaging Management System DIN Deutsche Industrie Normenausschuss DIN Deutsche Ingineering Normilization DIN Deutsches Institut fur Normung DINS Digital Information Network Service DIO Data Input-Output DIP Dual In-line Package DIP Document Interchange Protocol DIPE Distributed Interactive Processing Environment DIR Direction DIR Directory DIRE DIRE Is Really EMACS DIRT Design In Real-Time DIS Defense Investigative Service DIS Digital Information Systems DIS Disconnect DIS Draft International Standard DIS Dynamic Impedance Stabilization DISA Direct Inward System Access DISA Data Interchange Standards Association DISA Direct Inward Subscriber Access DISA Direct Inward System Access DISC Disconnect DISER Digital Information Systems External Resources DISOSS DIStributed Office Support System DISP Directory Information Shadow Protocol DISP Displacement DISP Draft International Standardized Profile DIT Directory Information Tree DIU Digital Interface Unit DIU Deactivate Indication DIV Divide DIW D-Inside Wire DIX DEC, Intel, Xerox DL Data Link layer DL Direct Labor DL Distibution List DL Download DL/1 Data Manipulation Language 1 DLAB Divisor Latch Access Bit DLC Digital Loop Carrier DLC Data Link Control DLC Digital Loop Carrier DLCI Data Link Connection Identifier DLCU Digital Line Carrier Unit DLE Data Link Escape DLE Delete DLG Digital Line Graph DLI Data Link Interface DLL Dial Long Lines DLL Data Link Layer DLL Dynamic Link Layer DLL Dynamic Link Library DLN Digital Library Network DLO Dead Letter Office DLR DOS LAN Requester DLS Digital Link Service DLS Data Link Service DLS Dial Line Service DLS Digital Line Section DLSAP Data Link Service Access Point DLSDU Data Link Service Data Unit DLTU Digital Line/Trunk Unit DLTU Digital Line Trunk Unit DLU-PG Digital Line Unit - Pair Gain DLUC Digital Line Unit Control DM Delta Modulation DM Dialog Manager DM Disconnected Mode DM Disconnected Mode DMA Direct Memory Access DMAC DMA Controller DMCL Digital Modem Command Language DMD Directory Management Domain DME Digital Management Education DME Distance Measuring Equipment DME Distributed Management Environment DMI Digital Multiplexed Interface DMI Definition of Management Information DMI Desktop Management Interface DMI Digital Multiplexed Interface DMI Digital Multiplexed interface DML Data Manipulation Logic DML Data Manipulation Language DML Database Management Language DMM Digital Multimeter DMM Digital Multimeter DMM District Manufacturing Manager DMMS Dynamic Memory Management System DMO Domain Management Organization DMOS Diffusion Metal Oxide Semiconductor DMOS Double-diffused Metal-Oxide Semiconductor DMP Dot Matrix Printer DMPL Digital Microproccessor Plotter Language DMRD Defense Management Report Decision DMS Data Management System DMS Digital Multiplexed System DMS Data Management Services DMS Data Management Software DMS Defense Messaging System DMS Diskless Management Service DMSP Defense Meteorological Satellite Program DMSS Distribution, Marketing, Sales and Service DMT Design Maturity Test DMTF Desktop Management Task Force DMU Data Manipulation Unit DMY Day Month Year DN Directory Number DN Distinguished Name DN Down DNA Digital Named Accounts DNA Digital Network Architecture DNA Digital Network Architecture DNC Dynamic Network Controller DNC Direct Numerical Control DNC Dynamic Network Controller DNCRI Division of Networking and Communications Research and Infrastructure DNHR Dynamic Non Hierarchical Routing DNI DECnet Network Interface DNIC Data Network Identification Code DNIS Dialed Number Identification Service DNR Dialed Number Recorder DNS Domain Name System DNS Domain Naming System DNX Dynamic Network X-connect DO Data Out DOAM Distributed Office Applications Model DOC Dynamic Overload Control DOC Department of Communications DOCS Display Operator Console System DOCS Display Operator Console System DOCS Display Operator Control System DOD Department Of Defense DOI Document Oriented Interface DOM Data On Master group DOM Data On Master DOM Data On Master group DOM District Operations Manager DOMAIN Distributed Operating Multi Access Interactive Network DONACS Department Of Navy office Automation on Communication System DOP Directory Operational Protocol DORE Dynamic Object Rendering Environment DOS Disk Operating System DOS/VSE Disk Operating System/Virtual Storage Extended DOT&E Director, Operational Test and Evaluation DOTS Digital Office Timing Supply DOV Data Over Voice DOW Day Of Week DP Demarcation Point DP Dial Pulse DP Data Processing DP Display Postscript DP Draft Proposal DPA Demand Protocol Architecture DPA Distributed Power Architecture DPA Document Printing Application DPAC Dedicated Plant Assignment Center DPANS Draft Proposed American National Standard DPAREN Data Parity Enable DPB Drive Parameter Block DPC Destination Point Code DPC Direct Program Control DPCM Differential PCM DPE Data Path Extender DPI Dots Per Inch DPL Descriptor Privilege Level DPLL Digital Phase Locked Loop DPM Defect Per Million DPM Digital Panel Meter DPM Directional Policy Matrix DPMA Data Processing Management Association DPMI DOS Protected Mode Interface DPN-PH Data Packet Network - Packet Handler DPNSS Digital Private Network Signaling System DPP Discounted Payback Period DPP District Partner Program DPPX Distributed Processing Programming eXecutive DPS Display PostScript DPSK Differential Phased-Shift Keying DQDB Distributed Queue Dual Bus DQDB Distributed Queued Dual Bus DQL Database Query Language DQT Design Quality Test DR Data Ready DR Data Receive DR Data Received DR Deactivate Request DR Deactivation Request DR Delivery Report DR Digital Research DR Disconnect Request DRAM Dynamic Random Access Memory DRAW Direct Read After Write DRC Data Resource Center DRCS Dynamically Redefinable Character Sets DRD Data Reading Device DRD Data Reading Device DRD Data Reading Device DRDA Distributed Relational Data Architecture DRDBMS Distributed Relational DBMS DRDW Direct Read During Write DRE Direction DRE Directional Reservation Equipment DRI Defense Research Internet DRI Digital Research Incorporated DRMU Digital Remote Measurement Unit DRO Data Request Output DRO Destructive Read-Out DRP DECnet Routing Protocol DRP Directory Replication Protocol DRP Distribution Resource Planning DRPF Decimal Reference Publication Format DRS Data Rate Select DRV Drive DS Digital carrier Span DS Dansk Standardiseringsrad DS Data Segment DS Data Send DS Data Server DS Digital Signal DS Digital carrier Span DS Direct Signal DS Directory Service DS Distributed Single-layer DS Document Storage DS Double-Sided DS Draft Standard DS0 Digital Signal ZER0 DSA Decimal Shift and Add Algorithm DSA Destination Software Address DSA Dial System Assistance DSA Digital Signal Analyzer DSA Digital Storage Architecture DSA Directory Service Agent DSA Directory System Alert DSA Directory Systems Agent DSA Distributed Systems Architecture DSAB Distributed Systems Architecture Board DSAP Destination Service Access Point DSB Double SideBand DSBAM Double-SideBand Amplitude Module DSBSC Double SideBand Supressed Carrier DSC Digital Subscriber Controller DSC Document Structuring Conventions DSC Document Structuring Conventions DSCS Defense Satellite Communications System DSD Data Structure Definition DSD Data Structure Diagram DSDC Direct Service Dial Capability DSDC Direct Service Dial Capability DSDD Double Sided, Double Density DSE DSA Specific Entry DSE Data Storage Equipment DSE Data Structure Editor DSE Data Switching Equipment DSE Distributed Single-layer Embedded DSEA Display Station Emulation Adapter DSECT Dummy Control Section DSEE Domain Software Engineering Environment DSHD Double Sided, High Density DSI Digital Speech Interpolation DSI Data Subscriber Interface DSIN Digital Software Information DSL Digital Subscriber Line DSL Dynamic Simulation Language DSLA Digital Software Licensing Architecture DSM Digital Standard MUMPS DSM Digital Switching Module DSM Distributed Systems Manufacturing DSMC Digital Service Monthly Charge DSN Digital Signal level N DSN Deep Space Network DSN Digital Services Network DSO Digital Storage Oscilloscope DSOM Distributed SOM DSP Defense Standardized Protocol DSP Defense Support Program DSP Digital Signal Processing DSP Digital Signal Processor DSP Directory System Protocol DSP Domain Specific Part DSQD Double Sided, Quad Density DSR Dynamic Service Register DSR Data Send Ready DSR Data Set Ready DSR Device Status Register DSR Device Status Report DSR Digital Standard Runoff DSR Dynamic Service Register DSRI Digital Standard Relational Interface DSS Data Station Selector DSS Decision Support System DSS Digital Signal Standard DSS Digital Signature Standard DSS Direct Station Selection DSS Domain-Specific System DSSI Digital Small Storage Interconnect DSSI Digital Storage Systems Interconnect DSTAR Digital System Technical Architecture Research DSTN Double SuperTwisted Nematic DSU Data Servicing Unit DSU Data Service Unit DSU Digital Service Unit DSU Disk Subsystem Unit DSU/CSU Data Service Unit/Channel Service Unit DSUWG Data Systems Users Working Group DSW Data Status Word DSW Device Status Word DSX Digital System X-connect DT Data Transmit DT Di-group Terminal DT DaTa DT Data Through DT Data Transfer DT Dial Tone DT1 Data Form Class 1 DTA Disk Transfer Area DTAM Document Transfer Access and Manipulation DTAM Document Transfer, Access, and Manipulation DTAS Digital Test Access System DTB Data Transfer Bus DTC Di-group Terminal Controller DTC Digital Trunk Controller DTC Digital Telephone Controller DTC Digital Typeface Corp. DTD Document Type Definition DTE Data Terminal Equipment DTE Dumb Terminal Emulator DTF Dial Tone First DTG Direct Trunk Group DTI Digital Trunk Interface DTIF Digital Tabular Interchange Format DTIF Digital Transmission Interface Frame DTL Diode-Transistor Logic DTM Data Transfer Module DTM Digital Trunk Module DTMF Dual Tone Multi Frequency DTN Digital Telephone Network DTP DeskTop Publishing DTP Distributed Transaction Processing DTR Data Terminal Ready DTR Data Transfer Rate DTS Digital Termination System DTSS Dartmouth TimeSharing System DTST Dial Tone Speed Test DTU Di-group Terminal Unit DTU Demand Transmission Unit DTV Desk Top Video DU Data Unit DU Data Upstream (i.e. IOM2) DU Deactivation Request Upstream DU Decision Unit DU Disk Usage DUA Directory User Agent DUATS Direct User Access Terminal System DUOW Distributed Unit Of Work DUP Data User Part DUT Device Under Test DUV Data Under Voice DVC Digital Voice Card DVI Digital Video Interactive DVI Digital Video Interactive DVM Data Voice Multiplexor DVM Digital Volt Meter DVMA Direct Virtual Memory Access DVMRP Distance-Vector Multicast Routing Protocol DVN Digital Video Network DVT Design Verification Test DVX Digital Voice eXchange DWAPS Defense Warehousing Automated Processing System DWB Documenter's WorkBench DWCI DecWindows Compiler Interface DWG Drawing DWIM Do What I Mean DX Distance DXC Data Exchange Control DXF Drawing Interchange Format DXT Data eXtractT facility DXT Data eXtractT facility DYRECT Dynamic Real Time Communication Tester E&M rEceive & transMit E&M Ear and Mouth E-COM Electronic Computer Originated Mail E-COM Electronic Computer Originated Mail E-MAIL Electronic MAIL E-MAIL Electronic MAIL E-NET Ethernet, "E-Net" E911 Enhanced 911 EA Electronic Arts EA Expedited Data Acknowlegment EA Extended Adress EA Extended Attribute EAAT Equal Access Alternative Technologies EADAS Engineering and Administrative Data Acquisition System EADAS/NM EADAS/Network Management EADASS Engineering and Administrative Data AcquiSition System EAEO Equal Access End Office EARN European Academic Research Network EAROM Electrically Alterable Read Only Memory EARS Electronic Access to Reference Services EAS Extended Announcement System EAS Extended Area Service EAS Engineering Administration System EAS Extended Area Service EASD Equal Access Service Date EASD Equal Access Service Data EASI Enhanced Asynchronous SCSI Interface EASI European Academic Supercomputer Initiative EATA Enhanced AT Bus Attachment EBB Economic Bulletin Board EBBS Electronic BBS EBC EISA Bus Controller EBCDIC Extended Binary Coded Decimal Interchange Code EBCDIC Extended Binary Coded Decimal Interexchange Code EBDA Extended BIOS Data Area EBDI Electronic Business Data Interchange EBI Equivalent Background Input EBI Extended Background Investigation EBI Extensive Background Investigations EBT Electronic Benefits Transfer EC Echo Canceller EC Exchange Carrier EC Exchange Carriers ECAD Electronical Computer Aided Design ECAD Engineering Computer Aided Design ECAL Enjoy Computing And Learn ECAP Electronic Customer Access Program ECASS Electronically Controlled Automatic Switching System ECASS Export Control Automated Support System ECC Enter Cable Change ECC Error Check Code ECC Error Checking and Correction ECC Error Correction Code ECC Error Correction Codes ECCM Electronic Counter-CounterMeasures ECCS Economic C (hundred) Call Seconds ECD East Coast Division ECD Enhanced Color Display ECDO Electronic Community Dial Office ECF Enhanced Connectivity Facilities ECF Enhanced Connectivity Facility ECFA Electronic Communications Forwarding Act ECG ElectroCardioGram ECHO European Commision Host Organization ECITC European Committee for Information technology Technology ECL Emitter Coupled Logic ECL Error Code Logging ECL Error Correction Logic ECM Electronic Counter Measure ECM Electronic Countermeasures ECMA European Computer Manufacturers Association ECN Engineering Computer Network ECO Electronic Central Office ECO Engineering Change Order ECP Extended Capabilities Port ECPA Electronic Communication Privacy Act ECPA Electronic Communications Privacy Act ECPT Electronic Coin Public Telephone ECS Electronic Crosconnect System ECS Environmental Control System ECSA Exchange Carriers Standards Association ECSA Exchange Carriers Standards Association ED EWOS Document ED End Delimiter ED Erase Display ED Exception Data ED Expedited Data EDA Electronic Design Automation EDA Embedded Document Architecture EDA Enterprise Data Access EDAC Electromechanical Digital Adapter Circuit EDC Engineering Data Center EDC Error Detection Code EDC Error Detection and Correction EDD Enterprise Data Distribution EDDC Extended Distance Data Cable EDGAR Electronic Data Gathering, Analysis, and Retrieval EDI Electronic Data Interchange EDI Electronic Document Interchange EDIA Electronic Data Interchange Association EDIF Electronic Design Interchange Format EDIFACT EDI for Administration Commerce and Transport EDIM EDI Message EDIME EDI Messaging Environment EDIMS EDI Message Store EDIN EDI Notification EDIUA EDI User Agent EDL Edit Decision List EDLC Ethernet Data Link Control EDLIN Editor Line EDN Expedited Data Negociation EDP Electronic Data Processing EDPM Electronic Data Processing Machine EDRS Engineering Data Resources Services EDS Electronic Data Systems EDSAC Electronic Delay Storage Automatic Computer EDSI Enhanced Small Device Interface EDSX Electronic Digital Signal X-connect EDTCC Electronic Data Transmission Communications Central EDVAC Electronic Discrete Variable Automatic Computer EDWG ESnet DECnet Working Group EE Electrical Engineer EE Electronics Engineer EE End to End Signaling EEC Electronic Equipment EEC Electronic Equipment Cabinet EEC European Economic Commission EEC Extended Error Correction EECT End-to-End Call Trace EEDP Expanded Electronic Dialing Plan EEE Electronic Equipment Enclosures EEG ElectroEncephaloGram EEHLLAPI Entry Emulator High Level Language API EEHO Either End Hop Off EEI Equipment-to-Equipment Interface EEI External Environment Interface EEL Epsilon Extension Language EEM External Expansion Module EEMA European Electronic Mail Association EEMS Enhanced Expanded Memory Specification EEPROM Electrically Erasable Programmable Read-Only Memory EETDN End-to-End Transit Delay Negotiation EFA Extended File Attribute EFD Event Forwarding Discriminator EFF Electronic Frontier Foundation EFI Electromechanical Frequency Interference EFI Electronics For Imaging EFIS Electronic Flight Instrumentation System EFL Emitter Follower Logic EFLS Electronic Filmless Camera System EFRAP Electronic Feeder Route Analysis Program EFS Error Free Seconds EFS Extended Facility Set EFS External File System EFT Electronic Funds Transfer EFTA European Free Trade Association EFTS Electronic Funds Transfer System EG Expert Group EGA Enhanced Graphics Adapter EGP Exterior Gateway Protocol EGREP Extended GREP EHA European Harmonization Activity EHF Extremely High Frequency EHP Error Handling Package EI Ending Inventory EIA Electronics Industries Assotiation EIA Electronic Industries Association EIA Electronics Industry Association EIES Electronic Information Exchange System EIN Employer Identification Number EINE EINE Is Not EMACS EIS Electronic Information Security EIS Enterprise Integration Services EIS Executive Information System EIS Executive Information Systems EIS Expanded Inband Signaling EIS Expanded Inband Signaling EIS Extended Instruction Set EISA Extended Industry-Standard Architecture EISA Extended Industry-Standard Architecture EISB Electronic Imaging Standards Board EISS Economic Impact Study System EISS European Intelligence Support System EIT Encoded Information Type EITS Encoded Information TypeS EIU Extended Interface Unit EIUF European ISDN Users Format EIn Error Indication n EJASA Electronic Journal of the Astronomical Society of the Atlantic EKG ElectroKardioGram EKTS Electonic Key Telephone Service EKTS Electronic Key Telephone Set EKTS Electronic Key Telephone Sets EL ElectroLuminescent EL Erase Line ELAN ESPIRIT Local Area Network ELAP Ethernet LAP ELD Electroluminescent Displays ELDS Exchange Line Data Service ELF Employee Locater Facility ELF Extensible Linking Format ELF Extremely Low Frequency ELLE Elle Looks Like Emacs ELM ELectronic Mailer ELS Entry Level System ELT Emergency Locator Transmitter EM Electronic Mail EM Encryption Module EM End Medium EM Engineering Model EM Expanded Memory EMA Electronic Mail Association EMA Enterprise Management Architecture EMACS Editor MACroS EMACS Editor MACroS EMACS Escape Meta Alt Control Shift EMB Enhanced Master Burst EMB Extended Memory Blocks EMC ElectroMagnetic Capability EMC ElectroMagnetic Compatibility EMC Electromagnetic Compatibility EMC Extended Math Coprocessor EME Electromagnetic Emission EMF ElectroMotive Force EMI ElectroMagnetic Induction EML Expected Measured Loss EMM Enterprise Mail Management EMM Expanded Memory Manager EMM Extended Memory Management EMMS Electronic Mail and Micro Systems EMOS East Mediterranean Optical System EMP Electromagnetic Pulse EMPM Electronic Manuscript Preparation and Markup EMPRESS EnvironMental Pulse Radiation Environment Simulator for Ships EMR Electro-Magnetic Radiation EMR ElectroMagnetic Response EMR ElectroMagnetic Response EMS Electromagnetic Susceptibility EMS Electronic Mail System EMS Electronic Message Service EMS Electronic Message System EMS Element Management System EMS Enterprise Messaging Server EMS Expanded Memory Specification EMS Extended Memory Specification EMU ElectroMagnetic Unit EMUG European MAP/TOP User Group EN Electronic News EN European Norm ENDS End Segment ENE Enterprise Networking Event ENFIA Exchange Network Facility for Interstate Access ENG Engineering ENIAC Electronic Numerical Integrator and Calculator ENIAC Electronic Numerical Integrator and Computer ENQ Enquire ENQ Enquiry ENS Enterprise Network Services ENSDU Expedited Network Service Data Unit EO End Office EO Erasable Optical EOA End of Address EOB End of Block EOC Embedded Operation Channel EOC Embedded Operations Channel EOC End of Conversion EOCM Electro-Optical Countermeasures EOD End Of Data EOD Erasable Optical Disk EOE Electronic Order Exchange EOF End of File EOFC End Of Facsimile Control EOI End or Identify EOJ End of Job EOL End Of Life EOL End of Line EOL End of List EOM End of Message EOR Exclusive OR EOS Extended Operating System EOS Earth Observing System EOS Electrical OverStress EOS Element Of Service EOS End of String EOS Extended Operating System EOT End Of Table EOT End of Tape EOT End of Text EOT End of Transmission EOTC European Organization for Testing and Certification EOTT End Office Toll Trunking EOU End Of User EOWG Engineering and Operations Working Group EP Emulation Program EP Expedited Data EPA Enhanced Performance Architecture EPD Entry Products Division EPG External Products Group EPHOS European Procurement Handbook for Open Systems EPIC Extended PIC EPL Effective Privilege Level EPL Electronic Program Language EPL Electronic switching system Program Language EPLD Electrically Programmable Logic Device EPLS Engineering Price List System EPOS Electronic Point Of Sale EPOS Engineering and Project-management Oriented Support system EPOS Engineering and Project-management Oriented Support system EPP Enhanced Parallel Port EPP Executive Partner Program EPPS Electronic Pre-Press Systems. EPROM Electrically Programmable Read Only Memory EPROM Erasable Programmable Read-Only Memory EPS Encapsulated PostScript EPSCS Enhanced Private Switched Communication Service EPSCS Enhanced Private Switched Communications Service EPSF Encapsulated PostScript File EPSF Encapsulated PostScript Files EPSF Encapsulated PostScript Format EPSI Encapsulated PostScript Interchange EPTS Electronic Problem Tracking System EPUB Electronic PUBlication EQ EQual to EQR Electronics Quality Registry EQUEL Embedded QUEL ER Error ER Error Register ERA Electrically Reconfigurable Array ERA Entity-Relationship-Attribute ERAR Error Return Address Register ERC Error Control ERD Entity-Relation Diagram ERD Entity-Relationship Diagram ERD Event Report Descriminator ERE Entity-Relationship Editor EREP Environmental Recording Editing and Printing ERF Emergency Restoration Facility ERF Event Report Function ERICA Eyegaze Response Interface Computer Aid ERL Echo Return Loss ERLL Enhanced Run Length Limited ERLL Extended Run Length Limited ERMF Event Report Management Function EROM Erasable Read Only Memory ERP Effective Radiated Power ERR Error ERU Error Return Update ERU Error Return address Update ES Extra System ES End System ES Errored Second ES Extra Segment ES-IS End System to Intermediate System ESA Enterprise Systems Architecture (MVS/XA followon) ESA Errored Second, type A ESA European Space Agency ESA European Space Agency ESAC Electronic Surveillance Assistance Center ESAC Electronic Systems Assistance Center ESAFE Errored Second, type A, Far End ESB Emergency Service Bureau ESB Entry Systems Business ESB Errored Second, type B ESC Enhanced Speech Circuit ESC Escape ESCC Extended high level Serial Communication Controller ESCP Errored Second, CP-bit Parity ESCRC Errored Second, Cyclic Redundancy Check ESD ElectroStatic Discharge ESD Electronic Software Distribution ESD Electronic Systems Development ESD Electrostatic Sensitive Device ESD Engineering Service Division ESDI Enhanced Small Device Interface ESDI Enhanced Standard Device Interface ESDP Educational Services Development and Publishing ESF Extended SuperFrame ESF Extended Superframe Format ESFE Errored Second Far End ESG Engineering Systems Group ESH End System Hello ESI ElectroStatic Interference ESI Enhanced Serial Interface ESL Emergency Stand-Alone ESM Electronic Support Measures ESM External Storage Module ESMD Embeded Storage Module Disk ESMD Enhanced Storage Module Device ESN Electronic Serial Number ESN Electronic Switched Network ESO Engineering Support Operations ESOBB European Southern Observatory Bulletin Board ESOC European Space Operations Center ESP Enhanced Serial Port ESP Enhanced Service Provider ESP Errored Second, P-bit ESPEC Ethernet SPECification ESPIRIT European Strategic Program for Research into Information Technology ESPS Entropic Signal Processing System ESS Electronic SpreadSheet ESS Electronic Switching System ESS Environmental Stress Screening ESSEX Experimental Solid State EXchange ESSX Electronic Switching Systen eXchange ESTELLE Extended State Transition Language ESU Electro-Static Unit ESVN Executive Secure Voice Network ESnet Energy Sciences network ET Exchange Termination ET&Q Engineering, Technology and Quality ETAS Emergency Technical ASsistance ETB End of Transmission Block ETF Electronic Toll Fraud ETFD Electronic Toll Fraud Device ETG EWOS Technical Guide ETH Eidgnoessiche Techniche Hochschule ETIS Electronic Telephone Inquiry System ETLA Extended Three Letter Acronym ETN Electronic Tandem Network ETPL Endorsed Tempest Products List ETRI Electronics and Telecommunications ETRI-PEC Electronics and Telecommunications Research Institute - Protocol Engineering Center ETS Econometric Time Series ETS Electronic Tandem Switching ETS Electronic Translation System ETS Electronic Translator System ETS European Telecommunications Standards ETS Executable Test Suite ETSACI Electronic Tandem Switching Adminstration Channel Interface ETSDU Expedited Transport Service Data Unit ETSI European Telecommunication Standards Institute ETSI European Telecommunications Standards Institute ETSSP Electronic Tandem Switching Status Panel ETV Education TeleVision ETX End of Text EU End User EUC Extended Unix Code EUNET European Unix NETwork EUPOT End User-Point of Termination EUROSINET EURopean Open Systems Interconnect NETwork EUSR End User EUUG European UNIX Users Group EUUG European Unix User Group EUV Extreme UltraViolet EVE European Videoconferencing Experiment EVGA Expanded Video Graphics Array EVGA Extended Video Graphics Adapter EVGA Extended Video Graphics Array EVS European Videoconferencing Service EVX Electronic Voice eXchange EW Electronic Warfare EWO Engineering Work Order EWOS European Workshop for Open Systems EWS Engineering Work Station EX EXpedited data EXCA EXchangable Card Architecture EXCOM Executive Committee EXP Exponent EXT External EXTRN External Reference EZW Embedded Zerofree Waves FA Factory Automation FA Finance Accounting FA Frame Aligner FA Fuse Alarm FA&T Final Assembly and Test FAA Facility Accepted FAB Feature-Advantage-Benefit FABS Financial and Administration Business Systems FAC Facility FACD Facility Changed Msg. FACD Foreign Area Customer Dialing FACOM Fujitsu Automatic Computer FACS Facilities Assignment and Control System FACS Facility Assignment and Control System FADU File Access Data Unit FAMOS Floating Gate Avalanche MOS FAN Facility Area Network FAO For Adults Only FAP File Access Protocol FAPL Format And Protocol Language FAQ Frequently-Asked Questions FAQL Frequently-Asked Questions List FAR Federal Acquisition Regulation FAR Facility Request FARNET Federation of American Research NETworks FAS Frame Alignment Signal FASST Flexible Architecture Standard System Technology FAST Federation Against Software Theft FAST First Application System Test FAT File Allocation Table FAT Foreign Area Translation FATT File ATTach FAX Facsimile FBE Free Buffer Enquiry FBI Federal Bureau of Investigation FBO Fixed-Base Operator FBR For Best Results FC Feature Control FC Fiber Channel FC Frame Control FCAP Facility CAPacity FCB File Control Block FCC Forward Command Channel FCC Federal Communications Commission FCC Federal Computer Conference FCC Forward Command Channel FCCSET Federal Coordinating Committee for Science, Education and Technology FCCSET Federal Coordinating Council for Science, Education and Technology FCCSET Federal Coordinating Council for Science, Engineering, and Technology FCFS First Come, First Served FCG False Cross or Ground FCG Format Computer Graphics FCI Flux Changes per Inch FCO Field Change Order FCO Frequency Controlled Oscillator FCP Foundation for Cooperative Processing FCS File Control System FCS File Control Systemction FCS First Customer Ship FCS Frame Check Sequence FCS Frame Control Sequence FCST Forecast FCT Four Corner Test FD File Descriptor FD Flexible Disk FD Flexible Diskette FD Flexible Drive FD Floppy Disk FD Floppy Diskette FD Floppy Drive FD Full Duplex FDC Floppy Disk Controller FDD Floppy Disk Drive FDDI Fiber Digital Data Interface FDDI Fiber Digital Device Interface FDDI Fiber Distributed Data Interface FDDI Fiber Distributed Digital Interface FDHD Floppy Drive High Density FDI Feeder/Distribution Interfaces FDI Format DIrectory FDM Frequency-Division Multiplexing FDMA Frequency Division Multiple Access FDP Field Development Program FDT Format Description Technique FDX Full DupleX FE Format Effecters FE Front End FEA Finite Element Analysis FEBE Far End Block Error FEC Forward Error Correction FECC Front End Communication Computer FECN Forward Explicit Congestion Notification FED Far End Data FED Field Emission Display FEDIX FEDeral Information eXchange FEDSIM FEDeral Systems Integration and Management center FEFO First-Ended, First-Out FEM Finite Element Modeling FEMF Foreign Electro-Motive Force FEP Front End Processor FEPG Federal Engineering Planning Group FEPS Facility and Equipment Planning System FERPM FTAM Error Recovery Protocol Machine FET Field Effect Transistor FEV Far End Voice FF Flip-Flop FF Form Feed FFA Field Failure Analysis FFRDC Federally Funded Reseach and Development Center FFS Fast File System FFT Fast Fourier Transform FG Feature Group FG Frame Ground FG Functional Group FGA Feature Group A FGB Feature Group B FGC Feature Group C FGD Feature Group D FGREP Fixed GREP FGS Fine Guidance Sensors FH Full Height FI File Interchange FIB Focused Ion Beam FIB Forward Indication Bit FIE Federal Information Exchange FIF Fractal Image Format FIFO First-In, First-Out FILO First-In, Last-Out FIMS Forms Interface Management System FIN FINish flag FIN Facility Information Msg. FIN Field Information Notice FINE FINE Is Not Emacs FIO Frequency In and Out FIOC Frame Input/Output Controller FIP Facility Interface Processor FIP File Processor Buffering FIPS Federal Information Proccessing Standard FIR Field Information Report FIR Finite Impulse Response FIRMR Federal Information Resource Management Regulation FIRST Forum of Incident Response and Service Teams FISG Financial Industries Systems Group FISH First In, Still Here FISU Fill In Signal Unit FIT Federal Information Technologies, inc. FITS Flexible Image Transport System FIX Federal Inter-agency eXchange FJ Frame Jump FLACC Full Level ALGOL Checkout Compiler FLD Field FLEA Four Letter Extended Acronym FLL Fixed Loss Loop FLOP FLoating point OPeration FLOPS FLoating-point OPerations per Second FLOPS Floating Point Operations Per Second FLS Floating License Server FLT Front Load Tape FM Fault Management FM Frequency Modulation FMAC Facility Maintenance And Control FMAP Field Manufacturing Automated Process FMC Financial Management Center FMC Flexible Manufacturing Cell FMCS Federal Mediation and Conciliation Service FMEA Failure Mode and Effect Analysis FMIC Field Manufacturing Information Center FMM Finite Message Machine FMMC Field Manufacturing Management Committee FMP Field Manufacturing Plan FMR Field Marketing Representative FMR Follow Me Roaming FMS Financial Management Service FMS Flexible Machining/Manufacturing System FMS Forms Management System FMT Format FMVFT Frequency-Modulated Voice Frequency Telegraph FN FiNish FN Forward Notification FNBE Far and Near end Block Error FNC Federal Networking Council FNPA Foreign Numbering Plan Area FNT Font FO Fiber Optics FO Forecast Order FOA Fiber Optic Adapter FOA First Office Application FOAC Federal Office Automation Center FOC Fiber Optic Communications FOCUS Federation On Computing in the U.S. FOCUS Forum of Control Data Users FOD Finger Of Death FOD Format Office Document FOE Fucking Operator Error FOG First Osborne Group FOIA Freedom Of Information Act FOIMS Field Office Information Management System FOIRL Fiber Optic Inter Repeater Link FOMC Field Operations Management Committee FON Fiber Optics Network FORCS Faa's Operational Reporting Communication System FORTRAN FORmula TRANslator FOSE Federal Office Systems Exposition FOSSIL Fido/Opus/Seadog Standard Interface Layer FOT Fiber Optic Transceiver FOT Forward Transfer FOX Field Operational X.500 FP Facility Parameter Field FP Functional Protocol FPA Floating Point Accelerator FPA Floating Point Adapter FPC Floating Point Coprocessor FPC Frequency Comparison Pilots FPD Flat Panel Display FPDU FTAM Protocol Data Unit FPE Floating Point Engine FPGA Field Programmable Gate-Array FPLA Field Programmable Logic Array FPM Feet Per Minute FPP Fixed Path Protocol FPP Floating Point Processor FPS Fast Packet Switching FPS Feet Per Second FPS Frames Per Second FPU Floating Point Unit FQDN Fully-Qualified Domain Name FR Flat Rate FR Frame Relay FRAC Frame Aligner Circuit FRACTAL FRACTional dimensionAL FRAG Fragment FRAG Fragmentation FRAM Ferroelectric Random-Access Memory FRAM Ferromagnetic RAM FRED FRame EDitor FRED FRont End to the Directory FRED Flipping Rediculous Electronic Device FRED Fred Resembles Emacs Deliberately FREQ File REQuest FRICC Federal Research Internet Coordinating Committee FRJ Facility Rejected Msg. FRMR FRaMe Reject FRPI Flux Reversals Per Inch FRPS Field Reliability Performance Studies FRQ Facility Request Message FRS Flexible Route Selection FRS First Revenue Ship FRS Flexible Route Selection FRU Field Replacable Unit FS Field Service FS File Separator FS File System FS Floppy System FS Frame Status FS Full Scale FS Functional Standard FSC Frame Synchronization Clock FSCM Federal Supply Code for Manufactures FSD File System Driver FSE Field Service Engineer FSF Free Software Foundation FSF Free Software Foundation FSF Free Software Foundation FSF Free Software Foundation FSG Financial Systems Group FSG Format SGML FSK Frequency Shift Keying FSK Frequency Shift Keying FSK Frequency Shift Keying FSK Frequency Shift Keying FSK Frequency Shift Keying FSL Field Service Logistics FSM Finite-State Machine FSN Forward Sequence Number FSR Free System Resources FSS Fast System Switch (System V) FSS Federal Supply Service FSS Flight Service Station FT Field Test FT File Transfer FT1 Fractional T1 FTAM File Transfer Access and Management FTAM File Transfer And Management FTAM File Transfer, Access, and Management FTC Federal Trade Commission FTE Factory Test Equipment FTF Face To Face FTG Final Trunk Group FTM Flat Tension Mask FTP File Transfer Protocol FTPD File Transfer Protocol Daemon FTPI Flux Transitions Per Inch FTS Federal Telecommunications System FTS Federal Telecommunications Service FTS Federal Telephone System FTS File Transfer Service FTS Flight Telerobotic Servicer FTSC Federal Telecommunications Standards Committee FTW File Tree Walk FU Functional Unit FUBAR Failed UniBus Address Register FUD Fear, Uncertainty, and Doubt FUNC Function FUS Full-Use Standard FVC First Volume Commit FX Foreign eXchange FY Fiscal Year G Giga G-LOTOS Graphical Language for Temporal Ordering Specification G/L General Ledger GAAP Generally Accepted Accounting Principles GAB Group Audio Bridging GAIA GUI Application Interoperability Architecture GAL Generic Array Logic GAN Global Area Network GAP Group of Analysis and Provision GARR Gruppo Arminizzazione Rete por la Ricerca GATED GATEway Deamon GB GigaByte GBS Group Bridging Service GC Garbage Collect GC Garbage Collection GC Garbage Collector GC Graphic Context GCA General Communications Architecture GCC Gnu C Compiler GCI General Circuit Interface GCL Graphics Command Language GCOS General Comprehensive Operating System GCR General Configuration Register GCR Gray Component Replacement GCR Group Code Recording GCR Group-Coded Recording GCS Group Control System GDA Global Data Area GDB Gnu DeBugger GDDM Graphics Data Display Manager GDI Graphics Device Interface GDMO Guidelines for the Definition of Managed Objects GDS General Data Stream GDS Graphics Data Syntax GDT Geometric Dimensioning and Tolerancing GDT Global Descriptor Table GE General Electric GE Greater than or Equal to GECOS General Electric Comprehensive Operating System GEIS General Electric Information Systems GEISCO General Electric Information Services COmpany GEL Gain Extention Language GEM Graphics Environment Manager GEMDES Government Electronic Messaging and Document Exchange Service GEMS General Electric Medical Systems GENIE General Electric Network for Information Exchange GENSYM Generated Symbol GEOS Graphic Environment Operating System GET Get Execute Trigger GFCI Ground Fault Circuit Interrupter GFID General Format IDentifier GFR Grim File Reaper GGP Gateway-to-Gateway Protocol GHZ GigaHertZ GIA General International Area GID Group ID GIF Graphic Interchange Format GIF Graphics Interchange Format GIGO Garbage In, Garbage Out GIM Group Identification Mark GIN Graphics INput GIPS Giga-Instructions Per Second GIS Geographical Information System GKS Graphical Kernel Standard GKS Graphical Kernel System GKS Graphics Kernal System GKS-3D Graphical Kernel System in Three Dimensions GKSM GKS Metafile GL Graphics Language GLIB Gay and Lesbian Information Bureau GLM General Linear Models GLOMR Global Low-Orbiting Message Relay GMD Gesellschaft fur Mathematik und Datenverarbeitung GMG Government Manufacturing Group GMT Greenwich Mean Time GMW Give me More Windows GN Given Name GND GrouND GNM Generic Network Model GNMP Government Network Management Profile GNU GNU's Not Unix GNUMACS GNU EMACS GORP Good Old Raisins and Peanuts GOS Grade Of Service GOSIP Government Open Systems Interconnection Profile GOSMACS Gosling EMACS GOVT Government GP Gas Plasma GP General Purpose GP Graphics Processor GP Group Processor GPC General Purpose Computer GPCI Graphics Processor Command Interface GPD Gas Plasma Display GPD Graphics Products Division GPF General Protection Fault GPI Graphics Programming Interface GPIB General-Purpose Interface Bus GPL GNU Public License GPL General Public License GPL Graphics Programming Language GPN Government Packet Network GPO Government Printing Office GPPC General Purpose Power Controller GPS General Problem Solver GPS Global Positioning System GPSI Graphics Processor Software Interface GPSS General Purpose System Simulator GPSS General Purpose Systems Simulation GPX Graphics Processor Accelerator GQ Generation Qualifier GR Graphical Representation GRA GRS Acknowledgement GRASS Geographical Resources Analysis Support System GRD GRounD GRDF GOSIP Register Data Base GRE Graphics Engine GREP Global Regular Expression Print GRIPS Government Raster Image Processing Software GROPE Graphical Representation Of Protocols in Estelle GRPMOD GRouP MODulator, "GRP MOD" GRS Circuit Group Reset GS Gray-Scale GS Group Separator GSA General Services Administration GSAT General telephone and electronics SATellite corporation GSB General Systems Business GSG Government Systems Group GSIM General Services Industry Marketing Group GSM Global System Mobile GSM Group Special Module GSM Groupe Speciale Mobile GSN Government Satellite Network GSS Generation Support Statements GSSP General Systems Security Principles GSTS Ground-based Surveillance and Tracking System GT Give Token GT Greater Than GT Group Technology GTA Give Token Acknowledgement GTA Government Telecommunications Agency GTC General Telephone Company GTC Give Token Confirm GTE General Telephone Electronics GTE General Telephone and Electric GTEI Global TEI GTN Government Telecommunications Network GTS Gamma Transfer Service GTSI Government Technology Services, Inc. GTT Global Title Transmission GUI Graphical User Interface GUIDE Graphical User Interface Design Editor GURPS Generic Universal Roleplaying Systems GUS Gravis UltraSound GUS Guide to the Use of Standards GVPN Global Virtual Private Network GW-BASIC Gee Whiz BASIC GWEN Ground Wave Emergency Network GWM Generic Window Manager GWS Graphics Work Station GWY Gateway H Hold state H- High- H/V Horizontal/Vertical H/W Hardware HA Home Automation HA Horn Alert HA Host Adapter HAC Hands-Free Add-On Circuit HACD Home Area Customer Dialing HAKMEM HAcKs MEMory HAL Hard Array Logic HAL Hardware Abstraction Layer HAL Heuristically programmed ALgorithmic computer HAL House Programmed Array Logic HAM Hold And Modify HAP Host Access Protocol HARM High-Availability, Reliability, and Maintainability HASP Houston Automated Spooling Program HASP Houston Automatic Spooling Priority HAT Hashed Address Table HAW HAWaii HBA Host Bus Adapter HBD Honeywell Brain Damage HCDS High Capacity Digital Service HCF Halt and Catch Fire HCIG Health Care Industry Group HCL Host Control Links HCR Hodge Computer Research, inc. HCSDS High-Capacity Satellite Digital Service HCTDS High-Capacity Terrestrial Digital Service HD Hard Disk HD High Density HD-WDM High Density-Wave Division Multiplexing HDA Hard Disk Assembly HDA Head Disk Assembly HDB3 High-Density Bipolar 3 HDBV Host DataBase View HDD Hard Disk Drive HDI Head to Disk Interference HDI Help Desk Institute HDLC High-level Data Link Control HDPT Hard Disk Parameter Table HDR Header HDSC High Density Signal Carrier HDTV High Definition TeleVision HDW Hardware HDX Half DupleX HEA Hyundai Electronics America HEC Human Engineering Computers HEHO High End Hop Off HEM High-level Entity Management HEMS High-level Entity Management System HEMT High Electron Mobility Transistor HEPNET High Energy Physics Network HERC Hercules HERO Hazards of Electromagnetic Radiation to Ordnance HEX Hexadecimal HF Hands Free HF Hawthorne Farms HF High Frequency HFE Human Factors Engineering HFR Hardware Failure Rate HFS Hierarchical File System HGA Hercules Graphics Adapter HGA High Gain Antenna HGCP Hercules Graphics Card Plus HH Half Height HH Hour HI High Impedance HI Highway Interrupt HIC Hybrid Integrated Circuit HIFO Highest-In, First-Out HIIPS Hud Integrated Information Processing Services HIL Human Interface Link HIPPI High Performance Parallel Interface HIRES HI-RESolution HIS Honeywell Information System HITS Human Intelligence Tasking System HJK Honk knog-Japan-Korea HLCO High Low Close Open HLDLC High Level Data Link Control HLHSR Hidden Line & Hidden Surface Removal HLI High-speed LAN Interconnect HLL High-Level Language HLLAPI High Level Language Application Programming Interface HLQ High Level Qualifier HLS Hue Lightness Saturation HLT Halt HM High-resolution Monochrome HMA High Memory Area HMA Hub Management Architecture HMI Hub Management Interface HMI Human-Machine Interface HML Human-Machine Language HMOS High Density Metal Oxide Semiconductor HMOS High Speed Metal Oxide Semiconductor HMOS High performance Metal Oxide Semiconductor HMP Host Monitoring Protocol HNPA Home Numbering Plan Area HNS Hospitality Network Service HOB Hierarchical Operational Binding HOBBIT High Order BIT HOBIC HOtel Billing Information Center HOBIS HOtel Billing Information System HOS High-Order System HP Hewlett-Packard HPAD Host-Packet Assembler/Disassembler HPC High-Performance Computing HPCC High-Performance Computing and Communications HPD High Performance Division HPFS High Performance File System HPG Hewlett-Packard Graphics HPGL Hewlett-Packard Graphics Language HPI Hahn Popularity Index HPIB Hewlett-Packard Interface Bus HPL/T High-Productivity Languages/Tools HPO High Performance Option HPPA HP Precision Architecture HPPA Hewlett-Packard Precision Architecture HPPI High Performance Parallel Interface HPS Hardware Product Services HPS High Performance Systems HQ Headquarters HRG High Resolution Graphics HRI High Resolution Imager HRIS Human Resource Information System HRMS Human Resource Management System HRPF Hexadecimal Reference Publication Format HS High Speed HSB Hue Saturation Brightness HSC Hierarchical Storage Controller HSC High Speed Channel HSCC High Level Serial Communication Controller HSCX HSCc eXtended HSFS High Sierra File System HSI High Speed Interface HSI Horizontal Situation Indicator HSL Hue Saturation Lightness HSLC Health Sciences Libraries Consortium HSLN High Speed Local Network HSP High Speed Printer HSSDS High-Speed Switched Digital Service HST High Speed Technology HSV Hue Saturation Value HT High Tension HT Horizontal Tab HT Horizontal Tabulator HTI Highway Transfer Interrupt HU High Usage HU High-Usage trunk HUD Heads Up Display HUGE Hewlett-packard Unsupported Gnu Emacs HUTG High Usage Trunk Group HV High Voltage HVM High Volume Manufacturing HVP Horizontal & Vertical Position HW Hardware HWCP Hardware Code Page HWD Height-Width-Depth HYDRA HYbrid Document Reproduction Apparatus HZ HertZ I Information I&M Installation & Maintenance I/F Interface I/O Input/Output IA Implementation Agreements IA Implementators Agreements IA International Activities IAB Interactive Application Builder IAB Internet Activities Board IAC InterApplication Communication IAL International Algebraic Language IAM Initial Address Msg. IANA Internet Assigned Numbers Authority IAPPP International Amateur/Professional Photoelectric Photometry IAS Information Access Services IAYF Information At Your Fingertips IB Instruction Buffer IBC ISDN Burst Transceiver Circuit IBC Instrument Bus Computer IBECC International BBSing and Electronic Communications Conference IBM International Business Machines IBM-GL IBM Graphics Language IBN Integrated Business Network IBT Illinois Bell Telephone IC Incoming Call IC Independent Carrier IC Input Circuit IC Integrated Circuit IC Inter-LATA Carrier IC Interexchange Carrier IC Interrupt Controller ICA International Communications Association ICA Intra-application Communications Area ICAN Individual Circuit ANalysis ICAS Intel Communicating Applications Specifications ICB Interstate Computer Bank ICC ISDN Communications Controller ICCC Inter-Client Communication Convention ICCCM Inter-Client Communication Conventions Manual ICCP Institute for the Certification of Computer Professionals ICD Interactive Call Distribution ICD International Code Designator ICE In-Circuit Emulator ICE International Communications Echomail ICE Intrusion Countermeasure Electronics ICE Intrusion Countermeasures Electronics ICFA International Computer Facsimile Association ICH International Call Handling ICI Interface Control Information ICL Interface Clear ICL International Computers Ltd. ICLID Individual Calling Line ID ICLID Individual Calling Line IDentification ICM Integrated Call Management ICMP Internet Control Message Protocol ICN Interconnecting Network ICOM Integrated Communication ICOMP Intel COmparative Microprocessor Performance ICOT ISDN COnference Testing ICP Integrated Channel Processor ICP Inventory Control Points ICPOT InterExchange Carrier-Point of Termination ICR Inductance,Capacitance,Resistance ICR Intelligent Character Recognition ICSC Inter-LATA Customer Service Center ICST Institute for Computer Science and Technology ICST Institute for Computer Sciences and Technology ICSU Intelligent Channel Service Unit ICT In-Circuit Test ICT Interactive Consumer Terminal ICUG International Closed User Groups ICVT InComing Verification Trunk ID IDentification ID Identifier IDA Integrated Digital Access IDA Intelligent Disk Array IDA Intelligent Drive Array IDA Interated Digital Access IDA Intercommunication Data Areas IDAPI Integrated Database API IDC Information Distribution Companies IDC International Data Corp. IDCI Interim Defined Central Office Interface IDDD International Direct Distance Dialing IDDD International Direct Distance Dial IDE Imbedded Drive Electronics IDE Integrated Development Environment IDE Integrated Drive Electronics IDE Intelligent Drive Electronics IDE Interactive Design and Engineering IDE Interactive Development Environments IDE Interface Design Enhancement IDEA Internet Design, Engineering, and Analysis notes IDEC ISDN D-channel Exchange Controller IDECUS Internal Digital Equipment Corporation User's Society IDF Intermediate Distributing Frame IDF Intermediate Distribution Frame IDG InterDialog Gap IDHS Intelligence Data Handling System IDI Initial Domain Identifier IDIV Integer Divide IDL Interactive Data Language IDL Interface Description Language IDLC Integrated Digital Loop Carrier IDM Image Data Manager IDMS Integrated Data Base Management System IDN Integrated Data Network IDN Integrated Digital Networks IDP Initial Domain Part IDP Integrated Data Processing IDP Internet Datagram Protocol IDP Internetwork Datagram Protocol IDPC Integrated Data Protocol Controller IDS Internal Directory System IDT Interrupt Descriptor Table IDU Interface Data Unit IDVC Integrated Data/Voice Channel IE Inter Ethernet IEC ISDN Echo Cancellation Circuit IEC InterExchange Carrier IEC International Electrotechnical Commission IED International Engineering Development IEE Institute of Electrical Engineers IEEE Institute of Electrical and Electronics Engineers IEF Information Engineering Facility IEG Internal Equipment Group IEN Internet Engineering Notes IEN Internet Experiment Notebook IEPC ISDN Exchange Power Controller IESG Internet Engineering Steering Group IETF Internet Engineering Task Force IEW Information Engineering Workbench IF Intermediate Frequency IFD Image File Directory IFF Identification - Friend or Foe IFF Image File Format IFF Interchange File Format IFF Iterative Function Fractal IFG InterFrame Gap IFIP International Federation for Information Processing IFLA International Federation of Library Associations IFR Instrument Flight Rules IFRB International Frequency Registration Board IFRPS Intercity Facility Relief Planning System IFS Installable File System IFS Internal File System IFU Interworking Funtional Unit IGA Integrated Graphics Array IGC Integrated Graphics Controller IGES Initial Graphics Exchange Specification IGES Initial Graphics Exchange Standard IGMP Internet Group Multicast Protocol IGOSS Industry-Government Open Systems Specification IGP Internet Gateway Protocol IGRP Internet Gateway Routing Protocol IGS Idenitfy Graphic Subrepertoire IHL Internet Header Length IIA Information Industry Association IIA Information Interchange Architecture IIE Institute of Industrial Engineers IIF Immediate IF IIL Integrated Injection Logic IIN Integrated Information Network IIR Immediate Impulse Response IISF International Information Security Foundation IISPB Image and Information Standards Policy Board IIW ISDN Implementors Workshop ILAC International Laboratory Accreditation Conference ILC ISDN Link Controller ILD Injection Laser Diode ILL InterLibrary Loan ILLS InterLibrary Loan System ILM Industrial Light and Magic ILS Instrument Landing System ILSP Integrated Logistic Support Plans IM Interface Module IM Information Management IM Input MUX IM Interface Module IM Interface Module IM&T Information and Technology Management IMA Interactive Multimedia Association IMAAP Intelligence Mission Area Analysis Plan IMAP Interactive Mail Access Protocol IMAS Integrated Mass Announcement System IMC IOS Mailbox Control IMDS Image Data Stream IMG Image IMIL International Management Information Library IMM Input Message Manual IMM Idle Material Management IMM Input Message Manual IMMU IOS Memory Management Unit IMP Infomation Management Plan IMP Interface Message Processor IMP Interpersonal Messaging Protocol IMPACT Information Market Policy ACTions IMPACT Inventory Management Program and Control Technique IMS Information Management System IMS Integrated Management System IMS Integrated Management Systems IMS Intermediate Maintenance Standards IMS/VS Information Management System/Virtual Storage IMSL International Mathematical Subroutine Library IMSO Integrated Micro Systems Operation IMT Image Management Terminal IMT Inter-Machine Trunk IMTS Improved Mobile Telephone Service IMUAPDU Interpersonal Message User Agent Protocol Data Unit IMUL Integer Multiply IN Intelligent Network IN Inch IN Input IN Intelligent Network IN/1 Intelligent Network/1 INADS INitialization and ADministration System INAP Intelligent Network Access Point INC Increment INC InterNational Carrier INCA Intelligence Communications Architecture INEWS Integrated Electronic Warfare System INF Information INGRES Interactive Graphic Retrieval System INIT INITials INIT Initialize INL Inter Node Link INMS Integrated Network Management System INN ImagiNation Network INN Inter Node Network INOC Internet Network Operations Center INR Information Request INRIA Institut National de Recherche en Informatique et Automatique INS Information Network System INS Input String INSCOM Intelligence and Security Command INSTITUTE INSTITUTE's Name Shows That It's Totally Unrelated To EMACS INT Integer INT Internal INT Interrupt INTA Interrupt Acknowledge INTAP INteroperability Technology Association for information Processing INTELSAT INternational TELecommunications SATellite INTERCAL Compiler Language With No Pronouncable Acronym INTO Interrupt if Overflow occurs INTT Incoming No Test Trunks INV Inventory INWATS INward Wide Area Telephone Service INWATS INward Wide Area Telephone System IO Inward Operator IO Independent Option IO Inward Operator IOC Input/Output Computer IOC Input/Output Controller IOC Integrated Optical Circuit IOC International Operating Center IOCC International Overseas Completion Center IOCS Input/Output Control System IOCTL Input/Output Control IOD Identified Outward Dialing IOM ISDN-Oriented Modular IONL Internal Organization of the Network Layer IOP Input-Output Processor IOS ISDN Operational Software IOS Intermediate Open System IOSGA Input/Output Support Gate Array IOT InterOffice Trunk IP Information Provider IP Instruction Pointer IP Intermediate Point IP Internet Protocol IPABX ISDN PABX IPAC ISDN PC Adapter Circuit IPAT ISDN Primary Access Transceiver IPBC IOM2 PBC IPC Instructions Per Clock IPC Integrated Personal Computer IPC InterProcess Communication IPC Inventory Process Control IPCE InterProcess Communication Environment IPCH Initial Paging Channel IPCS IOS Process Control System IPCS Interactive Problem Control System IPDP Industrial Peripheral Data Processing IPDS Intelligent Printer Data Stream IPDU Internet Protocol Data Unit IPE In-band Parameter Exchange IPE Integrated Programming Environment IPF Information Presentation Facility IPG Image Processing Group IPI Intelligent Peripheral Interface IPL Information Programming Language IPL Initial Program Load IPL Initial Program Loader IPLAN Integrated PLanning And Analysis IPLS InterLATA Private Line services IPM Impossible to Program Machines IPM Impulses Per Minute IPM InterPersonal MHS IPM InterPersonal Message IPM Interruptions Per Minute IPMO Industry Program Management Office IPMS InterPersonal Message Services IPMS InterPersonal Messaging System IPMUA InterPersonal Messaging User Agent IPP IOS Protocol Part IPRL ISPICS Requirements List IPS Inches Per Second IPS Information Processing Standards IPS Information Processing System IPSC Intel Personal SuperComputer IPSE Integrated Project Support Environment IPSG Internal Product Strategies Group IPSIT International Public Sector IT IPT Inventory Program Team IPU Intelligent Processing Unit IPX Integrated Packet eXchange IPX Internetwork Packet eXchange IQL Interactive Query Language IR Index Register IR Information Resource IR InfraRed IR Internet Router IR Internetwork Router IRA Interprocedural Register Allocation IRAF Image Reduction and Analysis Facility IRBM Intelligent Repeater Bridge Module IRC International Record Carrier IRC Internet Relay Chat IRD Information Resource Directory IRDS Information Resource Dictionary Standard IRDS Information Resource Dictionary Standard IRDS Information Resource Directory System IRE Institute of Radio Engineers IRET Interrupt Return IRG InterRecord Gap IRL Inter-Repeater Link IRL Interactive Reader Language IRLED Infrared Light Emitting Diode IRM Information Resource Management IRM Information Resources Management IRM Intelligent Repeater Module IRMS Information Resources Management Service IRN Intermediate Routing Node IROR Internal Rate Of Return IRPC ISDN Remote Power Control IRQ Interrupt Request IRR Internal Rate of Return IRSG Internet Research Steering Group IRTF Internet Research Task Force IRV International Reference Version IRX Information Retrieval Experiment IS Interrupt Set IS Information Separator IS Information Systems IS Intermediate System IS International Standard IS Interrupt Set IS Interrupt Status IS-IS Intermediate System to Intermediate System protocol ISA Industry-Standard Architecture ISAC ISDN Subscriber Access Controller ISAM Indexed Sequential-Access Method ISBD International Bibliographic Description ISBS Information Systems Business Segment ISC Information Services Center ISC Instruction Set Computer ISC Interactive Systems Corporation ISC International Switching Center ISD Image Section Descriptor ISD Instructional Systems Design ISDN Integrated Services Digital Network ISDNAP Integrated Services Digital Network Application Packet ISDT Integrated Systems Development Tool ISF Information Security Foundation ISF Information Systems Factory ISFUG Integrated Software Federal User Group ISH Intermediate System Hello ISI Information Sciences Institute ISI Internally Specified Index ISL Interactive System Language ISLM Integrated Services Line Module ISLU Integrated Services Line Unit ISM ISDN Switching Module ISM Installed Systems Marketing ISN Information Systems Network ISN Initial Sequence Number ISN Integrated Systems Network ISO International Standards Organization ISOCS ISO Central Secretariat ISODE ISO Development Environment ISOO Information Security Oversight Office ISORM ISO Reference Model ISP Intermediate Service Part ISP International Standardized Profile ISP Internet Service Provider ISP Interrupt Status Port ISPATS International Standardized Profile Abstract Test Suite ISPBX Integrated Systems PBX ISPC International Signaling Point Code ISPETS International Standardized Profile Executable Test Suite ISPF Interactive System Programming Facility ISPICS ISP Protocol Implementation Conference Statement ISPIXIT ISP Protocol Inplementation eXtra Information for Testing ISPN INFO Security Product News ISPS Information System Production Systems ISPX ISDN PBX ISR Information Storage and Retrieval ISR Interrupt Service Routines ISS Internal Special Systems ISS Initial System Sale ISS Integrated Switching System ISSA Information Systems Security Association ISSB Information Systems Standards Board ISSI Information Security Systems Inc. ISSM Information Systems Security Monitor ISSN Integrated Special Services Network ISSS ISDN Supporting System IST Initial System Test ISTA Interrupt Status Register ISU Integrated Service Unit ISUP Integrated Services User Part ISV Independent Software Vendor ISWS Internal Software Services IT Inactivity Test IT Industrial Technology IT Info Technics IT Information Technology ITA International Telegraph Alphabet ITAA Information Technology Association of America ITAC ISDN Terminal Adaptor Circuit ITAEGC IT Advisory Experts Group on Certification ITAEGS IT Advisory Experts Group on Standardization ITAEGT IT Advisory Experts Group on private Telecom networks ITAP Information and Technology Architecture Plan ITAR International Traffic in Arms Regulation ITB Information Technology Branch ITB Intermediate Text Block ITC Independent Telephone Company ITC Inter-Task Communication ITC International Typeface Corporation ITCA International TeleConferencing Association ITE International Technology Equipment ITI Industrial Technology Institute ITI Interactive Technology Equipment ITM Information Technology Management ITP Internet TransPort ITRC Information Technology Requirements Council ITS Institute of Telecommunication Science ITS Incompatible Timesharing System ITS Institute of Telecommunication Science ITS Institute of Telecommunication Science ITSB Image Technology Standards Board ITSEC Information Technology Security Evaluation Criteria ITSO Incoming Trunk Service Observation ITSP Information Technology and System Plan ITSP Information Technology and System Planning ITSTC Information Technology STeering Committee ITT International Telephone and Telegraph ITT Invitation To Transmit ITU International Telecommunications Union ITUSA IT Users Standards Association ITX Intermediate Text Block IUG Intelligence User's Guide IUT Implementation Under Test IUW ISDN Users' Workshop IV Interactive Video IV Interrupt Vector IV&V Independent Verification & Validation IVD Integrated Voice Data IVD Integrated Voice and Data IVD Interactive Video Disc IVDMS Integrated Voice and Data MultiplexerS IVDT Integrated Voice/Data Terminal IVDTE Integrated Voice/Data Terminal Equipment IVIS Interactive Video Information System IVMO Initial Value Managed Object IVP Installation Verification Program IVPC International Virus Prevention Conference IVR Interactive Voice Response IVS Interactive Videodisk System IVT Interrupt Vector Table IVTS International Video Teleconferencing Service IWC Inside Wire Cable IWF InterWorking Function IWF Interworking Facility IWS Intelligent Work-Station IWU InterWorking Unit IWU Intermediate Working Unit IX Interactive eXecutive IXC IntereXchange Carrier IXI International X.25 Infrastructure IXM IntereXchange Mileage JA Jump Address JA Jump if Above JACM Journal of the Association for Computing Machinery JAD Joint Application Development JAE Jump if Above or Equal JANET Joint Acedemic NETwork JASORS Joint Advance Special Operations Radio System JBE Jump if Below or Equal JBIG Joint Bi-level Image Group JC Jump if Carry set JCL Job Control Language JDC Japan Digital Cellular JE Jump if Equal JEC Job Evaluation Classification JECC Japan Electronic Computer Company JEDEC Joint Electronic Devices Engineering Council JEDI Joint EDI task force JEIDA Japan Electronics Inderstry Development Association JEIDA Japanese Electronics Industry Development Association JES Job Entry Subsystem JES Job Entry System JESUS Job Entry System of the University of Saskatuan JFET Junction FET JFIF JPEG File Interchange Format JFMIP Joint Financial Management Improvement Program JG Jump if Greater JGE Jump if Greater or Equal JIM Job Information Memorandum JINTACCS Joint INteroperability of TActical Command and Control Systems JIS Japan Industrial Standards JIS Japanese Industrial Standard JIS Jurisdictional Interstate Services JIS Jurisdictional Interstate Services JISC Japanese Industrial Standards Committee JITEC Joint Information Technology Experts Committee JL Jump if Less JLE Japanese Language Enveronment JLE Jump if Less than or Equal to JMP Jump JMUG Japanese MAP/TOP User Group JMX Jumbogroup MultipleX JNA Jump if Not Above JNAE Jump if Not Above or Equal JNB Jump if Not Below JNBE Jump if Not Below or Equal JNG Jump if Not Greater JNGE Jump if Not Greater or Equal JNLE Jump if Not Less or Equal JNO Jump if No Overflow JNP Jump if No Parity JNS Jump if No Sign JNT Joint Network Team JNZ Jump if Not Zero JOPES Joint Operations Planning and Execution System JOVE Jonathan's Own Version of Emacs JOVIAL Jules Own Version of the International Algorithmic Language JPE Jump if Parity Even JPEG Joint Photographic Experts Group JPL Jet Propulsion Laboratory JPO Jump if Parity Odd JS Jump if Sign JSA Japan Standards Association JSD Jackson System Development JSN Junction Switch Number JSPS Joint Strategic Planning System JSRC Joint Services Review Committee JSW Junctor SWitch JTC Joint Technical Committee JTIDS Joint Tactical Information Distribution System JTIDS Joint Tactical Information Distribution Systems JTM Job Transfer and Manipulation JUGHEAD Jonzy's Universal Gopher Hierarchy Excavation And Display JUNET Japan UNIX NETwork JZ Jump if Zero JvNC John von Neumann super computer Center JvNCnet John von Neumann super computer Center network K Kilobit K Kilobyte K&R brian Kernighan and dennis Ritchie KAIST Korean Advanced Institute of Science and Technology KB KeyBoard KB KiloByte KBD Keyboard KBPS KiloBits Per Second KBPS KiloBytes Per Second KBS Knowledge-Based System KCL Kyoto Common Lisp KDC Key Distribution Center KDCI Key Display Call Indicator KDD Kokusai Denshin Denwa KDT Key Definition Table KDT Keyboard Display Terminal KERMIT Kl-10 Error-free Reciprocal Micro Interconnect over Tty lines KEYB Keyboard KEYBBE Foreign language KEYBoard program - Belgium KEYBCF Foreign language KEYBoard program - Canadian-French KEYBDF Foreign language KEYBoard program - Denmark KEYBFR Foreign language KEYBoard program - France KEYBGR Foreign language KEYBoard program - Germany KEYBLA Foreign language KEYBoard program - Latin America KEYBNL Foreign language KEYBoard program - Netherlands KEYBNO Foreign language KEYBoard program - Norway KEYBPO Foreign language KEYBoard program - Portugal KEYBSF Foreign language KEYBoard program - Swiss-French KEYBSG Foreign language KEYBoard program - Swiss-German KEYBSP Foreign language KEYBoard program - Spain KEYBSU Foreign language KEYBoard program - Finland KEYBSV Foreign language KEYBoard program - Sweden KEYBUK Foreign language KEYBoard program - United Kingdom KFT KiloFeeT KHZ KiloHertZ KIF Key Index File KIP Kinetics IP KIPS Kilo-Instructions Per Second KIPS Kawasaki Integrated Power-valve System KISS Korean Intelligence Support System KLIPS thousands of Logical Inferences Per Second KLOC thousands of Lines Of Code KMP Key Management Protocol KOWC Key Word Out of Context KP Key Pulse KPL Kit Parts List KPO KeyPunch Operator KRS Knowledge Retrieval System KSDS Keyed Sequence DataSet KSF Key Success Factor KSH Korn SHell KSR Keyboard Send-Receive KSU Key System Unit KTA Korea Telecommunication Authority KTS Key Telephone Set KTS Key Telephone System KTU Key Telephone Unit KWIC Key Word In Context L3-ERC Layer 3 Error Control L3M Layer 3 Mgr. LAC Loop Assignment Center LADDR LAyered Device Driver aRchitecture LADS Local Area Data Service LADT Local Access Data Transport LAIS Local Automatic Intercept System LAL Local Analog Loopback LALL Longest Allowed Lobe Length LAMA Local Automatic Message Accounting LAN Local Area Network LANCE Local Area Network Controller for Ethernet LAP Link Access Protocol LAPB Link Access Procedure Balanced LAPB Link Access Procedure Binary LAPB Link Access Protocol Balanced LAPD LAP Digital LAPD Link Access Procedure Direct LAPD Link Access Procedure on the D channel LAPM Link Access Procedure for Modems LAPS LAN Adapter and Protocol Support LAPX LAPB eXtended LAPX Link Access Procedure half dupleX LAR Load Access Rights LASER Light Amplified and Stimulated by Emission of Radiation LASS Local Area Signaling Service LAST Local Area System Transport LAT Local Area Transport LATA Local Access Transport Area LATA Local Access and Transport Area LATIS Loop Activity Tracking Information System LAVC Local Area VAX Cluster LAWN Local Area Wireless Network LBBD Loopback B1, B2 and D channel request LBL Label LBO Line Buildout LBR Librarian LBRV Low Bit Rate Voice LBS Load Balance System LBT Listen Before Talk LBn Loopback channel Bn request LC Line Card LC Link Control LC Logical Channel LC Low cost Color LC inductor-Capacitor circuit LCA Logic Cell Array LCAMOS Loop CAble Maintenance Operation System LCC Leaded Chip Carrier LCC Leadless Chip Carrier LCCIS Local Common Channel Interoffice Signaling LCCL Line Card CabLe LCCLN Line Card Cable Narrative LCD Liquid Crystal Display LCDN Last Called Directory Number LCF Log Control Function LCGN Logical Channel Group Number LCI Logical Channel Identifier LCIE Lightguide Cable Interconnection Equipment LCLOC Line Card LOCation LCM Life Cycle Management LCM Line Concentrating Module LCN Logical Channel Numbers LCN Logical Channel Number LCN Logical Channel Numbers LCP Link Control Protocol LCR Least Cost Routing LCRMKR Line Card ReMarKs, Retained LCS Laboratory for Computer Science LCS Liquid Crystal Shutter LCS7 Link Controller for Signaling System No.7 LCSE Line Card Service and Equipment LCSEN Line Card Service and Equipment Narrative LCU Last Cluster Used LD Long Distance LDA Logical Device Address LDC Logical Device Coordinates LDC Long Distance Carrier LDC Lotus Development Corporation LDDI Local Distributed Data Interface LDL Local Digital Loopback LDM Limited-Distance Modem LDMTS Long Distance Message Telecommunications Service LDP Laboratory Data Products LDS Local Digital Switch LDT Local Descriptor Table LDX Long Distance eXtender LE Lance Ethernet LE Less or Equal LE Local Exchange LEA Load Effective Address LEAP Low-power Enhanced At Portable LEAS LATA Equal Access System LEBC Low End Business Center LEC Local Exchange Carrier LED Light-Emitting Diode LED Light-Emitting Diode LEDS Low End Disk Systems LEEP Large Expanse Extra Perspective LEGO Low End Graphics Option LEGSS Low End Graphics Sub-System LEM Language Extension Module LEN Low End Networks LEN Low Entry Networking LENCL Line Equipment Number CLass LER Light Emitting Resistor LERP Linear Interpolatior LEST Low End Systems and Technologies LEX Lexicon LF Line Finder LF Line Feed LF Line Finder LF Low Frequency LFACS Loop Facilties Assignment And Control System LFI Last File Indicator LFS Loopback File System LFSA List of Frequently Seen Acronyms LFU Least Frequently Used LGA Low Gain Antenna LGC Line Group Control LGDT Load Global Descriptor Table LGN Logical Group Number LH Line Hunting LI Length Indicator LIAR LIAR Imitates Apply Recursively LIB Library LICS Lotus International Character Set LIDB Line Information Database LIDT Load Interrupt Descriptor Table LIF Low Insertion Force LIFIA Laboratoire d'Informatique Fondamentale et d'Intelligence Artificielle LIFO Last In First Out LIM Lotus/Intel/Microsoft LIMM Lotus Intel Microsoft Memory LIMS Library Information Management System LINC Laboratory INstrument Computer LIPS Logical Inferences Per Second LIPS Logical Interferences Per Second LIPX Large IPX LISA Large Installation System Administration LISA Large Installation Systems Administration LISP LISt Processing Language LIST List-Oriented Interactive Language LISTSERV List Server LIU Line Interface Unit LL Logical Link LL Long Lines LL Lower Layers LLAMA Logic Lacking A Meaningful Acronym LLAP Localtalk LAP LLC Logical Link Control LLC Low Level Controller LLCC LeadLess Chip Carier LLCS Logical Link Control Security LLD Low Level Device Drivers LLDT Load Local Descriptor Table LLID LL Identifier LLL Last Look Logic LLN Line Link Network LLP Line Link Pulsing LLP Link Layer Protocol LLP Lower-Layer Protocol LLPDU Logical Link Protocol Data Unit LM Lan Manager LM Layer Management LM/X LAN Manager for Unix LME Layer Management Entity LMF License Management Facility LMF Low Magnetic Field LMI Local Management Interface LMI Local Memory Interconnect LMMS Local Message Metering System LMOS Loop Maintenance Operations System LMOS Loop Maintenance Operating System LMSW Load Machine Status Word LN Load Number LN Logarithm Natural LNA Low Noise Amplifier LND Logical Network Disk LOC Lines Of Code LOC Local Operating Company LOC Loop On-Line Control LOCAP LOw CAPacitance LODSB Load String Byte LOF Lock OFf-line LOF Loss of Frame LOG Logarithm LON Lock ON-line LOOPE Loop while Equal LOOPNE Loop while Not Equal LOOPNZ Loop while Not Zero LOOPS Lisp Object Oriented Programming System LOOPZ Loop while Zero LOP Lines Of Position LORE Line Oriented Editor LOS Line Of Sight LOSS LOSs of Signal LOTOS Language for Temporal Ordering Specification LOTS Low Overhead Timesharing System LP Linear Programming LPC Linear Predictive Coding LPCDF Low Profile Combined Distributing Frame LPD Line Printer Daemon LPDA Link Problem Determination Aid LPF League for Programming Freedom LPI Lines Per Inch LPL Lotus Programming Language LPM Lines Per Minute LPN Local Packet Network LPN Logical Page Number LPP Licensed Program Products LPR Line PrinteR LPT Line PrinTer LQ Letter Quality LRAP Long Route Analysis Program LRC Longitudal Redundancy Check LRC Local Register Cache LRC Longitudinal Redundancy Character LRC Longitudinal Redundancy Check LRL Least Recently Loaded LRN Local Reference Number LRP Long Range Plan LRS Line Repeater Station LRSP Long Range System Plan LRSS Long Range Switching Studies LRU Least Recently Used LRU Line Replaceable Unit LS Local Single-layer LSA Line Sharing Adapter LSAP Layer Service Access Point LSAP Link Service Access Point LSAP Logical Service Access Point LSAP Long Service Access Point LSAPI License Services API LSB Least Significant Bit LSB Least Significant Byte LSB Lower Side Band LSC Least Significant Character LSC LightSpeed C LSD Least Significant Digit LSDU Link Service Data Unit LSE Language Sensitive Editor LSE Local Single-layer Embedded LSE Local System Environment LSEC Loss of SEC LSEL Layer SELector LSEL Link SELector LSH Left SHift LSI Large Scale Integrated LSI Large Scale Integration LSL Link Support Layer LSL Load Segment Limit LSL Loss of Signal Level LSP LightSpeed Pascal LSRP Local Switching Replacement Planning system LSS Loop Switching System LSSD Level-Sensitive Scan Detection LSSU Link State Signal Unit LST List LSU Loss of Signal level of U interface LSUE LSU Error condition LSV Line Status Verifier LT Less Than LT Line Termination LT Loop Termination LT Lower Tester LT-S LT on S bus LT-T LT on T interface LTAB Line Test Access Bus LTC Local Test Cabinet LTD LT Disable LTD Local Test Desk LTE Line Termination Equipment LTF Lightwave Terminating Frame LTF Line Trunk Frame LTG Line Trunk Group LTR Letter LTR Load Task Register LTS Loss Test Set LTU Line Trunk Unit LTUC LTU Control LU Local Use LU Logical Unit LUG Local Users Group LUN Logical Unit Number LUT Look-Up Table LVM Line Verification Module LWSP Linear White-SPace LXE Lightguide eXpress Entry LZ Landing Zone LZ abraham Lempel, jacob Ziv LZH Lempel Ziv Haruyasu LZW Lempel-Ziv-Walsh LZW abraham Lempel, jacob Ziv, Welch M Mega M-BIT More data BIT M/S More Segments M/W MicroWave MA Maintenance Administrator MA Multiple Access MAA MAjor sync point Acknowledgment MAAP Maintenance And Administration Panel MAC MACintosh MAC Mandatory Access Control MAC Media Access Control MAC Medium Access Control MAC Message Authentication MAC Military Air Command MAC Move, Add, Change MAC Multi Access Computers MAC Multiple Analogue Component MACBS Multi-Access Cable Billing System MACF Multiple Access Control Function MACSYMA project MAC's SYmbolic MAnipulation System MAD Mirage Application Development MADN Multiple Access Directory Numbers MAN Manual MAN Metropolitan Area Network MAP Maintenance and Administration Position MAP MAjor sync Point MAP Maintenance Analysis Procedures MAP Maintenance and Administration Position MAP Management Assesment Program MAP Manufacturing Automation Profile MAP Manufacturing Automation Protocol MAP Marketing Assistance Program MAP Memory Allocation Map MAP Mobile Application Part MAP/TOP Manufacturing Automation Protocol/Technical Office Protocol MAPDU Management Application Protocol Data Unit MAPI Mail API MAPICS Manufacturing, Accounting and Production Information Control System MAPPER MAintaining, Preparing, and Processing Executive Reports MAPSS Maintenance & Analysis Plan for Special Services MAR Microprogram Address Register MARBI MAchine Readable form of Bibliographic Information MARC MAchine-Readable Cataloguing MARC Market Analysis of Revenue and Customers system MARCOM Marketing Communications MARS Multiuser Archival and Retrieval System MARS Multiuser Archival and Retrieval System MAS MAin Store MAS Main Store MAS Mass Announcement System MASB Mass Announcement System Bus MASC Mass Announcement System Controller MASE Message Administration Service Element MASM Macro Assembler MASM Mass Announcement System Memory MAT-CALS Marine Air Traffic-Control And Landing System MATAC Material Acquisition MATD Maximum Allowable Transit Delay MATFAP Metropolitan Area Transmission Facility Analysys Program MAU Math Acceleration Unit MAU Media Access Unit MAU Media Attachment Unit MAU Medium Access Unit MAU Medium Attachment Unit MAU Multiple Access Unit MAU Multistation Access Unit MAX Maximum MAXI Modular Architecture for the eXchange of Information MB MegaByte MBASIC Microsoft BASIC MBPS MegaBits Per Second MBPS MegaBytes Per Second MBR Master Boot Record MBU Manufacturing Business Unit MCA Micro Channel Architecture MCAD Mechanical Computer Aided Design MCAE Mechanical Computer Aided Engineering MCB Memory Control Block MCC Master Control Center MCC Master Control Console MCC Microelectronics & Computer Consortia MCC Microelectronics and Computer technology Corporation MCC Mission Control Center MCCS Mechanized Calling Card Service MCESS Mechanical Component Engineering Support Service MCGA MultiColor Graphics Adaptor MCGA MultiColor Graphics Array MCH Maintenance CHannel MCHB Maintenance CHannel Buffer MCI Malicious Call Identification MCI Media Control Interface MCI Microwave Communications Incorporated MCIAS Multi-Channel Intelligent Announcement System MCIAS Multi-Channel Intercept Announcement System MCN Metropolitan Campus Network MCNC Microelectronics Center of North Carolina MCP Master Control Program MCP Multiport Communication Processor MCP Multiprotocol Communication Processor MCP/AS Master Control Program/Advanced System MCR Memory ContRoller MCS Material Control System MCS Meeting Communications Service MCS Multinational Character Set MCT Manufacturing Cycle Time MCTRAP Mechanized Customer Trouble Report Analysis Plan MCTRAP Mechanized Customer Trouble Report Analysis Program MCU Microprocessor Control Unit MCU Multi-Chip Unit MD Make Directory MD Management Domain MD Mediation Device MD Monochrome Display MDA Monochrome Display Adapter MDACS Modular Digital Access Control System MDAS Magnetic Drum Auxiliary Sender MDB Master DataBase MDBS Mobile DataBase Station MDC Marker Distributor Control MDC Marker Distributor Control MDC Meridian Digital Centrex MDDS Media Documentation Distribution Set MDDS Media and Documentation Update Service MDE Modular Design Environment MDE Modular Design Environment MDF Main Distribution Frame MDFAT Microsoft Doublespace File Allocation Table MDI Medium Dependent Interface MDI Multiple Document Interface MDIC Manchester Decoder and Interface Chip MDQS Multi-Device Queueing System MDR Message Detail Record MDR Message Detail Recording MDR Minimum Design Requirement MDS Message Design Systems MDS Multi-point Distribution Service MDSE Message Delivery Service Element MDT Mean Down Time MDU Marker Decoder Unit MDX Modular Digital eXchange MDY Month Day Year ME Mechanical Engineer ME Mechanical Engineering MEB Memory Expansion Board MEC Mobile Equipment Console MEG Megabyte MELD Mechanized Engineering and Layout for Distributing frames MEM Manufacturing Engineering and Marketing MERS Most Economic Route Selection MERS Most Economical Route Selection MESI Modified Exclusive Shared Invalid MET Memory Enhancement Technology MET Multibutton Electronic Telephone MF Multi Frequency MF Mainboard Firmware MF Mediation Function MF Medium Frequency MF More Fragments MF Multi Frame MF Multi-Frequency MFB Monochrome Frame Buffer MFC Microsoft Foundation Class MFC Multiple Frame operation Control MFENET Magnetic Fusion Energy NETwork MFG Manufacturing MFJ Modified Final Judgment MFLOPS Million FLoating-point OPerations per Second MFM Modified Frequency Modulation MFP Multifunction Peripheral MFR Multi-Frequency Receivers MFS Macintosh File System MFS Magnetic Tape Field Search MFT Metallic Facility Terminal MFT Multiprogramming with a Fixed number of Tasks MFTL My Favorite Toy Language MG MasterGroup MGA Monochrome Graphics Adapter MGA Multimedia Graphics Architecture MGI Management Graphics Inc. MGR Manager MGT MasterGroup Translator MH Message Handler MH Message Handling MH Modified Huffman code MHD MagnetoHydroDynamics MHL Microprocessor Host Loader MHS Mail Handling System MHS Message Handling Service MHS Message Handling System MHS Message Handling Systems MHZ MegaHertZ MI Machine Interface MIA MInor sync Acknowledgment MIB Management Information Base MIC Management Information Center MIC Medium Interface Cable MICE Modular Integrated Communications Environment MICR Magnetic Ink Character Recognition MICS Macro Interpretive Commands MICS Management Information Conference Statement MIDA Message Interchange for Distributed Application MIDAS Master Integrated Distribution Subcontracting Agreement MIDI Musical Instrument Digital Interface MIF Maker Interchange Format MIF Management Information Format MIF Master Item File MIFASS Marine Integrated Fire And Support System MII Microsoft/IBM/Intel MIL Machine Interface Layer MIL Management Information Library MILNET MILitary NETwork MILSTAR Military Strategic, Tactical, and Relay MILSTD MILitary STandarD MIM Management Information Model MIM Media Interface Module MIMD Multiple Instruction Multiple Data MIME Multipurpose Internet Mail Extensions MIMG Media Industry Marketing Group MIN Minimum MIN Mobile Identification Number MINCE MINCE Is Not Complete Emacs MINE MINE Is Not Emacs MINX Multimedia Information Network eXchange MIP MInor sync Point MIP Microprocessor Interface Port MIPS Microprocessor without Interlocked Piped Stages MIPS Million Instructions Per Second MIPS Million of Instructions Per Second MIR Material Increase Request MIR Micro-Instruction Register MIRS Management Information Retrival System MIS Management Information Services MIS Management Information System MIS Management Information Systems MIS Manager of Information Systems MISC Miscellaneous MISCF MISCellaneous Frame MISG Market Information Services Group MIT Management Information Tree MIT Massachusetts Institute of Technology MITI Ministry of International Trade and Industry MITS Microcomputer Interactive Test System MIX Member Information Exchange MJ Modular Jack MJU MultiPoint Junction Unit MKDIR Make Directory ML Machine Language MLC MiniLine Card MLCD Multi-Line Call Detail MLDS Medium Large Disk Systems MLEM Multi Language Environment MLHG Multiline Hunt Group MLID Multiple Link Interface Driver MLL Medium Level Language MLP Maynard List Price MLP MultiLink Procedure MLPC Model Level planning Committee MLPP MultiLevel Precedence and Preemption MLS Microwave Landing System MLS MultiLevel Security MLS Multiple Listing Service MLT Mechanized Loop Testing MM Midway Manufacturing MM Minutes MM Month MM Multiple Master MMA Microcomputer Managers Association MMC Matched Memory Cycle MMC Microcomputer Marketing Council MMC Minicomputer Maintenance Center MMCD Multimedia Compact Disk MMCF MultiMedia Communications Forum MMD MultiMedia Document MMDF Multi-channel Memo Distribution Facility MME MultiMedia Extentions MMFS Manufacturing Message Format Standard MMGT MultiMasterGroup Translator MMHS Military MHS MMI Man-Machine Interface MMJ Modified Modular Jack MML Man-Machine Language MMOC Minicomputer Maintenance Operations Center MMP Modified Modular Plug MMS Main Memory Status MMS Manufacturing Message Service MMS Manufacturing Message Specification MMS Manufacturing Message Standard MMS Manufacturing Messaging Specification MMS Memory Management System MMS Modified Monitoring State MMU Memory Management Unit MMW Multi-Mega Watt MMX Mastergroup MultipleX MNOS Metal Nitride Oxide Semiconductor MNP Microcom Networking Protocol MO Magneto-Optical MO Managed Object MOA Military Operations Area MOAC Managed Object Authentication Check MOC Ministery of Communication MOCS Managed Object Conformance Statement MOD MODulo MOD Magneto-Optical Disk MODEM MOdulator-DEModulator MOF Master Order Form MOG Minicomputer Operations Group MOHLL Machine Oriented High Level Language MON Monitor Channel MOP Maintenance Operation Protocol MOP Maintenance Operations Protocol MOS Material Order System MOS Metal Oxide Semiconductor MOSFET Metal Oxide Semiconductor Field Effect Transistor MOT Managed Object to Test MOT Means Of Testing MOTIS Message-Oriented Text Interchange System MOV Metal Oxide Varistor MOV Move MOVS Move String MP Machine Processable MP Managing Process MP MicroProcessor MP Modular Plug MP MultiProcessing MP MultiProcessor MPC MP Command MPC Multimedia Personal Computer MPC Multiprocess Communications MPCC Microprocessor Common Control MPCH Main Parallel CHannel MPCS Mission Planning and Control Station MPDT MultiPeer Data Transmission MPDU Message Protocol Data Unit MPE MultiProgramming Executive MPEG Motion Pictures Experts Group MPEG Moving Picture Experts Group MPIF Multiprocessor Interface MPME Manufacturing Process and Material Engineering MPOW Multiple Purpose Operator Workstation MPP Massively Parallel Processing MPP Message Posting Protocol MPP Message Processing Program MPP MicroProcessor Pascal MPPD Multi-Purpose Peripheral Device MPR Multipart Repeater MPS Master Production Schedule MPS Megabytes Per Second MPSC Manufacturing Planning and Control Systems MPT Ministry of Posts and Telecommunications MPT MultiPort Transceiver MPTM MultiParty Test Method MPU Microprocessor Unit MPW Macintosh Programmer's Workshop MPX MultiPleXer MR Message Retrieval MR Miniatures Rules MR Modem Ready MR Modified Read MR Monitor Read MRAA Meter Reading Access Arrangement MRC Management Response Center MRC Manufacturing Resource Center MRC Market Research Center MRF Maintenance Reset Function MRFL Mandatory File and Record Locking MRI Magnetic Resonance Imaging MRO Multi-Region Operation MRP Manufacturing Requirements Planning MRP Manufacturing Resource Planning MRP Material Resource Planning MRP Materials Requirement Planning MRPL Main Ring Path Length MRS Material Requirements Schedule MRS Media Recognition System MRSE Message Retrieval Service Element MRT Mean Repair Time MRTS Modification Request Tracking System MRU Most Recently Used MS Maintenance State MS Memory System MS Menu Software MS Message Store MS MicroSoft MS Microsecond MS MilliSecond MS-DOS Microsoft-Disk Operating System MSAP MAC Sublayer Service Access SAP MSAT Mobile service SATellite MSAU Multi Station Access Unit MSAV MicroSoft AntiVirus MSB Mid-Range Systems Business MSB Most Significant Bit MSB Most Significant Byte MSC Media Stimulated Calling MSC MicroSoft C MSCDEX MicroSoft CD-rom EXtensions MSCP Mass Storage Control Protocol MSD Mass Storage Device MSD Micro Systems Development MSD Microsoft System Diagnostics MSD Most Significant Digit MSDR Multiplexed Streaming Data Request MSE Mobile Subscriber Equipment MSF Measurement Summarization Function MSFR Minimum Security Functionality Requirements MSG Message MSG Message MSI Medium Scale Integration MSL Map Specification Library MSL Mirrored Server Link MSL Motor Simulation Laboratory MSN Manhattan Street Network MSN Manufacturing Sequence Number MSN Multiple Subscriber Number MSNET MicroSoft Network MSP Mass Storage Pedestal MSP Message Security Protocol MSPM Manufacturing System Program Manager MSR Multitrack Serpentine Recording MSRCI MicroSoft Real-time Compression Interface MSS Management Support System MSS ManuScriptS MSS Mass Storage Subsystem MSS Mass Storage System MSS Maximum Segment Size MSS Mobile Satellite Service MSSC Marketing Sales Strategy Committee MSSE Message Submission Service Element MSSSE Message Submission and Storage Service Element MSU Msg. Signal Unit MSW Machine Status Word MT Message Transfer MT Mitel MTA Mail Transfer Agent MTA Message Transfer Agent MTA Message Transfer Architecture MTA Multiple Terminal Access MTAE Message Transfer Agent Entity MTB Magnetic Tape Billing MTBB Mean Time Between Breakdowns MTBF Mean Time Before Failure MTBF Mean Time Between Failures MTBJ Mean Time Between Jams MTBRP Mean-Time-Between-Parts-Replacement MTBSI Mean Time Between System Interruptions MTC MIDI Time Code MTC Man Tended Capability MTCN Minimum Throughput Class Negotiation MTF Master Test Frame MTF Modulation Transfer Function MTI Multi-Terminal Interface MTL Message Transfer Layer MTM Method Time Measurements MTP Message Transfer Part MTP Message Transfer Protocol MTR Magnetic Tape Recording MTR Mechanized Time Reporting MTS MECC Timeshare System MTS Memory Time Swich MTS Message Telecommunications Service MTS Message Telephone Service MTS Message Transfer System MTS Message Transport Service MTS Mobile Telephone Service MTS Modular Television System MTS Multichannel Television Sound MTSC MTS CMOS MTSE Message Transfer Service Element MTSL MTS Large MTSL Message Transfer SubLayer MTSO Mobile Telephone Switching Office MTSS MTS Small MTTA MultiTenant Telecommunications Association MTTF Mean Time To Failure MTTFF Mean Time To First Failure MTTR Mean Time To Recovery MTTR Mean Time To Repair MTTR Mean Time Trouble Repair MTU Maintenence Termination Unit MTU Maximum Transfer Unit MTU Maximum Transmission Unit MTU Media Tech Unit MTX Mobile Telephone eXchange MU Message Unit MUA Mail User Agent MUD Multiple User Dimension MUD Multiple User Domain MUD Multiple User Dungeon MUF Maximum Usable Frequency MUL Multiply MULDEM MULtiplexer-DEMultiplexer MULTICS MULTiplex Information Computer Services MULTICS MULTiplexed Information and Computing Service MUMPS Massachusetts general hospital Utility MultiProgramming System MUMPS Mgh Utility MultiProgram System MUNG Mash Until No Good MUNG Mung Until No Good MUNICH Multichannel Network Interface Controller MUSAC Multipoint Switching and Conferencing Unit MUSH Mail User's SHell MUX MUltipleX MUX MUltipleXer MUX MUltipleXor MV MediaVision MV MicroVAX MVA MegaVolt Ampere MVB MicroVax Business MVDM Multiple Virtual DOS Machine MVGA Monochrome Video Graphics Array MVP Multiline Variety Package MVS Multiple Virtual Storage MVS/SP Multiple Virtual Storage / System Product MVS/XA Multiple Virtual Storage / Extended Architecture MVT Multiprogramming with a Variable number of Tasks MW MicroWave MW MultiWink MWI Message Waiting Indicator MWM Motif Window Manager MX Mail eXchange MX Monitor Transmit MXU MultipleXer Unit NA Next Address NAAS North American Automated Systems co. NAB National Association of Broadcasters NAC Network Administration Center NAC Networks and Communications NACCB National Association of Computer Consultant Businesses NACCIRN North American Coordinating Committee for Intercontinental Research Networking NACD National Association of Computer Dealers NACM Networks and Communications Marketing NACS National Advisory Committee on Semiconductors NACS Novell Asynchronous Communications Server NAD Network Access Device NADF North American Directory Forum NADGE NATO Air Defense Ground Environment NAE Not Above or Equal NAEB North American EDIFACT Board NAG Network Architecture Group NAG Numerical Algorithms Group NAK Negative AcKnowledge NAK Negative AcKnowledgement NAM Number Assignment Module NAM Name and Address Module NAM National Account Manager NAMAS NAtional Measurement Accreduation Service NAN National Area Network NAND Not-AND NANP North American Numbering Plan NAPLPS North American Presentation Layer Protocol Suite NAPLPS North American Presentation Level Protocol Syntax NARDAC NAvy Regional Data Automation Center NAS National Advanced Systems NAS Network Access Support NAS Network Application Support NAS Numerical Aerodynamic Simulation NAS Numerical and Atmospheric Sciences network NASA National Aeronautics and Space Administration NASDAQ National Association of Security Dealers Automated Quotations NASI NetWare Asynchronous Services Interface NASM Named Account Sales Manager NATA National Association of Testing Authorities NATA North American Telecommunications Association NAU Network Access Unit NAU Network Addressable Unit NAUN Nearest Active Upstream Neighbor NAV Norton AntiVirus NAVDAC NAVal Data Automation Command NAVNEWS Navy News Service NB Narrow Band NBE Not Below or Equal NBFM NarrowBand Frequency Modulation NBI Nothing But Initials NBO Network Build Out NBO Network Business Opportunity NBP Name Binding Protocol NBS National Bureau of Standards NBVM Narrow Band Voice Modulation NC Network Channel NC Network Connection NC Network Control NC No Carry NC No Connection NC Numerical Control NCA National Computer Associates NCA Network Communications Adapter NCA Network Control Analysis NCAR National Center for Atmospheric Research NCB Network Control Block NCC National Computer Conference NCC National Computing Centre NCC Network Control Center NCC Notify Corrupted CRC NCCF Network Communications Control Facility NCD Network Computing Devices NCDC National Climatic Data Center NCGA National Computer Graphics Association NCI Network Channel Interface NCIC National Cartographic Information Center NCIC National Crime Information Center NCLIS National Commission on Libraries and Information Services NCM Network Connection Management NCMOS N-channel CMOS NCMS Network Control and Management Systems NCMT Numerical Control for Machine Tools NCP Network Control Point NCP Network Control Processor NCP Network Control Program NCP Network Control Protocol NCP Network Core Protocols NCP Not Copy Protected NCR National Cash Register NCS National Communications System NCS National Computer Systems NCS Network Computing System NCS Network Computing System NCS Network Computing System NCSA National Center for Supercomputing Applications NCSA National Computer Security Association NCSC National Computer Security Center NCSI Network Communications Services Interface NCSL National Computer Systems Laboratory NCTE Network Channel-Terminating Equipment NCTL National Computer and Telecommunications Laboratory NCU Network Control Unit ND Network Digit ND Network Disk ND&I Network Design & Installation NDA Network Delivery Access NDA Non-Disclosure Agreement NDB Non-Directional Beacon NDC National Destination Code NDC Network Data Collection NDCC Network Data Collection Center NDDL Neutral Data Definition Language NDE NeWS Development Environment NDEF Not to be Defined NDIS Network Device Interface Specification NDIS Network Driver Interface Specification NDL Network Database Language NDMS Netware Distributed Management System NDN National Distribution Network NDN NonDelivery Notification NDP Numeric Data Processor NDRO Non-Destructive Read Out NDS Netware Directory Service NDS Network Data System NDU Network Data Unit NDU Network Device Utility NDV NASP Derived Vehicle NDW Norton Desktop for Windows NE Network Element NE Not Equal NEAR National Electronic Accounting and Reporting system NEARNET New England Academic and Research NETwork NEAS Northeast Atlantic States NEAT New Enhanced AT NEBE Near End Block Error NEBS Network Equipment Building System NEBS New Equipment-Building System NEC National Electric Code NEC National Electric Conference NEC Nippon Electric Company NEC Nippon Electronic Company NEF Network Element Function NEFS Network extensible File System NEG Negate NEG Negative NEMA National Electrical Manufacturers Association NEMP Nuclear ElectroMagnetic Pulse NES Net Equipment Sales NES Nintendo Entertainment System NESAC National Electronic Switching Assistance Center NESC National Electric Safety Code NESC National Energy Software Center NESP National Education Supercomputing Program NET NETwork NET Network Entity Title NET New England Telephone NET Norme Europeene de Telecommunications NETBIOS NETwork Basic Input Output System NETBLT NETwork Block Transfer NETCDF NETwork Common Data Format NEWS NEtwork Window System NEWS Netware Early Warning System NEWS Network extensible Window System NEWS Network extensible Window System NEWS Networked extensible Windowing System NEWT NeWS Terminal NEXRAD NEXt generation weather RADar NEXT Near End X-Talk NF Not Finished NFF No Fault Found NFR Not a Functional Requirement NFS Network File System NFT Network File Transfer NG No Good NGC New General Catalog NGE Not Greater or Equal NGM Netware Global Messaging NHAS New Hampshire Administrative Services NHC National Hurricane Center NHOB Nonspecific Hierarchial Operational Binding NHR Non Hierarchial Routing NHTSA National Highway Traffic Safety Administration NI Network Interconnect NI Network Interface NI Non Interlaced NIC Network Information Center NIC Network Interface Card NIC Numeric Intensive Computing NICE Network Information and Control Exchange NICOLAS Network Information Center On-Line Aid System NID New Interactive Display NID Next ID NIDL Network Interface Definition Language NII National Informational Infrastructure NIM Network Information Center NIM Nuclear Instrumentation Module NIPS Naval Intelligence Processing System NIPS Network I/Os Per Second NIR Network Information Registry NIS Network Information System NISC Network Information Systems Center NISDN Narrowband ISDN NISO National Information Standards Organization NIST National Institute of Standards and Technology NISTAPP National Institute of Standards and Technology Application Portability Profile NITF National Imagery Transmission Format NIU Network Interface Unit NIUF North american ISDN Users' Forum NJB New Jersey Bell NJE Network Job Entry NKS Network Knowledge Server NL Network Layer NL New Line NLE Not Less or Equal NLM Netware Loadable Module NLP Natural Language Processing NLP Network Layer Protocol NLQ Near Letter Quality NLS Native Language Support NLS Network License Server NM Network Management NM Network Module NMC Network Management Center NMF Network Management Forum NMI New Model Introduction NMI Nautilus Memory Interconnect NMI Non-Maskable Interrupt NMOS N-channel Metal Oxide Semiconductor NMOS Negative Channel Metal-Oxide Semiconductor NMP Network Management Protocol NMR Normal Mode Rejection NMR Nuclear Magnetic Resonance NMS Network Management Station NMS Network Management System NMS Network Monitoring Station NMSIG Network Management Special Interest Group NN Negative Notification NNI Netherlands Normalisatie-Instituut NNI Network to Network Interface NNS Netware Name Service NNTP Net News Transfer Protocol NNTP Network News Transfer Protocol NNX Network Numbering eXchange NNX Numbering Network Exchange NOA NSWC Office Automation NOC Network Operations Center NOCS Network Operations Center System NOF Network Operations Forum NOIAN National Operations and Intelligence Analysis Net NOP No Operation NOR Not OR NORAD NORth American Defense command NORDO No-radio NORGEN Network Operations Report GENerator NORGEN Network Operations Report GENerator NOS Network Operating System NOSC Naval Ocean Systems Center NOTIS Network Operator Trouble Information System NP Network Provider NP New Project NPA No Power Alarm NPA Number Planning Area NPA Numbering Plan Area NPA Numeral Prefix Allocation NPAI Network Protocol Address Information NPAP Network Printing Alliance Protocol NPC North Pacific Cable NPDU Network Protocol Data Unit NPG New Product Group NPI Network Printer Interface NPI New Product Introduction NPIP New Product Integration Process NPL Non-Procedural Language NPN Negative-Positive-Negative NPO New Product Operations NPR Non-Processor Request NPSI Network Protocol Service Interface NPSS NASA Packet Switching System NPSU New Product Start Up NPV Net Present Value NQS Network Queuing System NRAM Non-voatile Read Only Memory NRC National Research Council NRCS National Replacement Character Set NRE Non-Recurring Engineering NREN National Research and Education Network NRL Naval Research Labs NRM Normal Response Mode NRO National Reconnaissance Office NROFF New ROFF NROFF Non typesetting RunOFF NRS Name Registration Service NRS Network Registration Service NRZ Non-Return to Zero NRZC NRZ Change NRZI Non-Return to Zero Inverted NRZI NonReturn to Zero Inverted NRZL NRZ Level NRZM NRZ Mark NS Name Server NS Nanosecond NS Network Service NS Network Services NS Network Supervisor NS Non Stop NSA National Security Agency NSAI National Standards Authority of Ireland NSAP Network Service Access Point NSC National Security Council NSC National Semiconductor NSC Network Service Center NSCS Network Service Center System NSDD National Security Decision Directive NSDSSO NASA Science Data Systems Standards Office NSDU Network Service Data Unit NSE Network Software Environment NSEC Network Switching Engineering Center NSEL Network SELector NSEM Network Software Environment NSFNET National Science Foundation NETwork NSP NATO Standardized Profile NSP Network Service Part NSP Network Services Protocol NSPMP Network Switching Performance Measurement Plan NSR Non-Sequential Recording NSS Nodal Switching System NSSDC National Space Science Data Center NSSDU Normal Data Session Service Data Unit NSSR NonSpecific Subordinate Reference NSTL National Software Testing Laboratory NSU Networking Support Utilities NSUG Nihon Sun User's Group NT Network Termination NT Network Terminus NT New Technology NT Northern Telecom NT/S NT Simulator NTE Network Terminal Equipment NTEC Network Technical Equipment Center NTF No Trouble Found NTFS NT File System NTIA National Telecommunications and Information Administration NTIA National Telecommunications and Information Agency NTIA Network Telecommunications and Information Administration NTIS National Technical Information Service NTIS National Technical Information System NTISSC National Telecommunications and Information Systems Steering NTM NT Test Mode NTM Network Traffic Management NTN Network Terminal Number NTN Neutralized Twisted Nematic NTO Network Terminal Option NTP Network Time Protocol NTS Network Technical Support NTS Network Test System NTSA Networking Technical Support Alliance NTSC National Television Standards Committee NTT New Technology Telescope NTT Nippon Telephone & Telegraph NUA Network User Address NUC Nailed-up Connection NUI Netware Users International NUI Network User ID NUI Network User Identification NUI Network User Identifier NUI Network User Interface NUI Notebook User Interface NUL Null NURBS NonUniform Rational B-Spline NUSC Naval Underwater Systems Command NV No Overflow NVE Network Visible Entry NVLAP National Voluntary Laboratory Accreditation Program NVM Non-Volatile Memory NVN National Videotext Network NVN National Videtex Network NVRAM NonVolatile Random Access Memory NVTS Network Virtual Terminal Serivce NWNET NorthWestNet NWSS Networks & Site Services NYACC New York Amateur Computer Club NYNEX New York, New England and the unknown (X) NYNEX New York,New England Exchange NYSERNet New York State Educational and Research Network NZ Non Zero NZUSUGI New Zealand Unix System User Group, Inc. NetBEUI NetBIOS Extended User Interface NetBIOS Network Basic Input/Output System NiCad Nickel-Cadmium NiMH Nickel Metal-Hydride O-LTM Optical Line Terminating Multiplexer O/R Originator/Recipient OA Office Automation OA Order Administration OA&M Operations, Administration & Maintenance OAAC Objects and Attributes for Access Control OACIS Oregon Advanced Computing InStitute OADG Open Architecture Development Group OAG Official Airline Guide OAGEE Official Airlines Guide Electronic Edition OAI Open Applications Interface OAM&P Operations, Administration, Maintenance, & Provisioning OASYS Office Automation SYStem OATS Office Automation Technology and Services OBD Online Bugs Database OBJ Object OBU Option Business Unit OC Office Communication OC Operator Centralization OC Optical Carrier OCATE Oregon Center for Advanced Technology Education OCC Office Communications Cabinet OCC Other Common Carrier OCE Open Collaboration Environment OCE Other Common Equipment OCE Other Common carrier channel Equipment OCI Out of City Indicator OCL Operation Control Language OCL Operator Control Language OCLC Online Computer Library Center OCO Object Code Only OCP Origination Point Code OCR Optical Character Reader OCR Optical Character Recognition OCRC Option Change Review Committee OCU Office Channel Unit OD Outdial ODA Office Document Architecture ODA Open Document Architecture ODAC Operations Distribution Administration Center ODBC Open DataBase Connectivity ODBMS Object-Oriented Database Management System ODD Operator Distance Dialing ODDD Operator Direct Distance Dialing ODI Open Data Interface ODI Open Datalink Interface ODI Optical Data Image ODI Optical Digital Image ODIF Office Document Interchange Format ODIF Open Document Interchange Format ODISS Optical Digital Image Storage System ODP Open Document Processing ODS Overhead Data Stream ODT Octal Debugging Technique ODT Online Debugging Technique ODT Open DeskTop OEDIPE OSI EDI for Energy Providers OEIC Optoelectronic Integrated Circiut OEM Original Equipment Manufacturer OF Overflow Flag OFMT Output Format for Numbers OFNPS Outstate Facility Network Planning System OFS Output Field Separator OFT Optical Fiber Tube OGICSE Oregon Graduate Institute Computer Science and Engineering OGT OutGoing Trunk OGVT OutGoing Verification Trunk OH Off Hook OHCS Operated Handled Conference Service OID Object IDentifier OIP Opportunity Investment Planning OIRA Office of Information and Regulatory Affairs OIS Office Information Systems OIS Office and Information Systems OIU Office Interface Unit OIW OSI Implementors Workshop OLE Object Linking and Embedding OLIT Open Look Interface Toolkit OLMC Output Logic Macrocell OLTM Optical Line Terminating Multiplexer OLTP OnLine Transaction Processing OLWM OpenLook Window Manager OM Office Management OM Output MUX OMAP Operations and Maintanance Application Part OMAP Operations, Management, and Administration Part OMC Operating and Maintainance center OME Oregon Microcomputer Engineering OMF Object Management Function OMF Object Module Format OMG Object Management Group OMM Output Message Manual OMNIPOINT Open MaNagement Interoperability POINT OMPF Operation and Maintenance Processor Frame OMR Optical Mark Recognition ONA Open Network Architecture ONAC Operations Network Administration Center ONAL Off Network Access Line ONC Open Network Computing ONI Operator Number Identification ONI Office of Naval Intelligence ONITA Of No Interest To Anybody ONMS Open Network Management System ONP Open Network Provision ONR Office of Naval Research OO Object Orientation OO Object Oriented OOB Out Of Band OOD Object-Oriented Design OODB Object Oriented Data Base OODBMS Object Oriented DBMS OOL Object-Oriented Language OOP Object-Oriented Programming OOPART Out Of Place ARTifact OOPL Object-Oriented Programming Language OOPS Object Oriented Program Support OOPS Object-Oriented Programming System OOPSLA OOPS Languages and Applications OOPSTAD Object Oriented Programming for Smalltalk Application Developers Association OOS Object-Oriented Systems OOS Off-line Operating Simulator OOS Out Of Service OOSH Object-Oriented SHell OOT Object-Oriented Technology OP Option OP Outside Plant OP OfficePower OP Operation OP Optical OP Output OP CODE Operational Code OPAL On-line Presentation Access Library OPC Optical Photoconductor OPC Originating Point Codes OPD Operand OPDU Operation Protocol Data Unit OPDU Operation Protocol Data Units OPDU Operations Protocol Data Unit OPEN Open Protocol Enhanced Networks OPEOS Outside Plant Engineering and Operations System OPI Open Prepress Interface OPM Outside Plant Module OPM Operations Per Minute OPM Outage Performance Monitoring OPOM Organizational Program Office Manager OPS Off-Premises Station OPS Operations OPSM Outside Plant Subscriber Module OPUS Obvious Password Utility System OPUS Octal Program Updating System OPX Off-Premises eXtension OR Originating Register ORAP O/R Address Prefix ORB Object Request Broker ORB Office Repeater Bay ORDLIX Organized Design for Line and Crew System ORG ORGinization ORM Optical Remote Module ORNAME Originator / Recipient Name OROM Optical Read Only Memory ORS Output Record Separator ORT Ongoing Reliability Test OS OutState OS Operating System OS Operator Service OS Output Spy OS/2 Operating System/2 OSA Open System Architecture OSAC Operator Services Assistance Center OSC OSCillator OSC OSCillator OSC Operator Services Center OSCAR Orbiting Satellite Carrying Amateur Radio OSCRL Operating System Command Response Language OSDIT Office of Software Development and Information Technology OSDS Operating System for Distributed Switching OSE Operating Systems Environment OSF Open Software Foundation OSF Open Systems Foundation OSI Open Systems Interconnect OSI Open Systems Interconnection OSI/RM Open Systems Interconnection/Reference Model OSINET Open Systems Interconnection Network OSIRM OSI Reference Model OSME Open Systems Message Exchange OSN Office Systems Node OSN Open Systems Network OSO Originating Signaling Office OSP OutSide Plant OSP Optical Storage Processor OSPF Open Shortest Path First OSPFIGP Open Shortest-Path First Internal Gateway Protocol OSPS Operator Service Position System OSS Office Support System OSS Office of Strategic Services OSS Operation Support System OSS Operations Support System OSS Operator Service System OSS Operator Services System OSSWG Office System Standards Work Group OST Originating Station Treatment OSTC Open Systems Testing Consortium OSTP Office of Science and Technology Policy OTA Office of Technical Assistance OTA Office of Technology Assessment OTBS One True Bracketing Style OTC Operating Telephone Company OTC Output Technology Corporation OTD Off the Dock OTDR Optical Time Domain Reflectometers OTF Open Token Foundation OTIS Operative Work Is Stimulate OTL OSI Testing Liason OTP One-Time Programmable OTP Order Transaction Processing OTR Operational Trouble Report OTROM One Time PROM OTS Off The Shelf OU Organizational Unit OURS Open Users Recommend Solutions OUTS Output String OUTWATS OUTward Wide Area Telecommunications Service OUTWATS OUTward Wide Area Telephone Service OV Overflow OW Over-Write OWF One-Way Function OWG Optical Wave Guide OWHN One-Word Host Name OWL Object Windows Library P/F Poll/Final bit P/T Part Time PA Power Alarm PA Precision Architecture PA Process Alert PA Program Address PA Public Address PAA Peer Access Approval PABX Private Automatic Branch eXchange PABX Private Automatic Branch eXchange PAC Pricing and Announcement Committee PACCEPT Presentation ACCEPT PACCOM Pacific Computer Communications network consortium PACE Program for Arrangement of Cables and Equipment PACT Prefix Access Code Translator PACX Private Automatic Computer eXchange PAD Packet Assembler/Disassembler PAD Packet Assembly/Disassembly PAD Public Access Device PADS Pen Application Development System PADSX Partially Automated Digital Signal Cross-Connect PAE Peer Access Enforcement PAGODA Profile Alignement Group for Office Docunent Architecture PAK Product Authorization Key PAL Paradox Applications Language PAL Personal Answer Line PAL Phase Alternating Line PAL Phase Alternation Line-rate PAL Programmable Array Logic PAL Programmed Array Logic PAL Programming Assembly Language PALS Principles of the Alphabet Literacy System PAM Pass Along Method PAM Primary Access Method PAM Pulse Amplification Modulation PAM Pulse-Amplitude Modulation PAN Peripheral Area Network PAN Personal Account Number PANS Pretty Advanced New Stuff PAP Printer Access Protocol PAR Parallel PARA Paragraph PARADISE Piloting A Researchers DIrectory Service in Europe PARC Palo Alto Research Center PAS Public Announcement Service PAS Pro Audio Spectrum PAS Protocol Architecture Specification PAS Public Announcement Service PASI Production, Availability, Shipments, Inventory PASS Personal Access Satellite System PAT Power Alarm Test PATROL Program for Administrative Traffic Reports On Line PATS Parameterized Abstract Test Suite PAX Parallel Architecture eXtended PAX Private Automatic eXchange PBC Peripheral Board Controller PBC Peripheral Bus Computer PBC Processor Bus Controller PBD Pacific Bell Directory PBD Programmer Brain Damage PBE Prompt By Example PBM Play By Mail PBM Product Business Manager PBS Philippines-Brunei-Singapore PBS Public Brand Software PBU Product Business Unit PBX Personal Branch Exchange PBX Private Branch eXchange PC Personal Computer PC Power Controller PC Primary Center PC Printed Circuit PC Production Control PC Program Counter PC-DOS Personal Computer - Disk Operating System PC-I/O Program Controlled I/O PC/AT Personal Computer/Advanced Technology PCA Printed-Circuit Assembly PCAT Personal Computer/Advanced Technology, "PC/AT" PCB PCBoard PCB Printed Circuit Board PCB Process Control Block PCB Program Control Block PCB Protocol Control Block PCC Portable C Compiler PCD Photo CD PCDA Program Controlled Data Acquisition PCDOS Personal Computer DOS PCE Presentation Connection End PCEI Presentation Connection End Identifier PCEP Presentation Connection End Point PCF Physical Control Fields PCF Portable Compiled Font PCH Parallel CHannel PCI Panel Call Indicator PCI Peripheral Component Interconnect PCI Presentation Context Identifier PCI Protocol Control Information PCL PCM data Clock PCL Printer Command Language PCL Process Control Language PCL Programmable Command Language PCM Plug Compatible Manufacturer PCM Plug-Compatible Mainframe PCM Product Capacity Manager PCM Profit Contribution Margin PCM Pulse-Code Modulation PCMCIA Personal Computer Memory Card International Association PCMS Precision Color Management System PCN Personal Communication Network PCN Personal Communications Networks PCNFS Personal Computer Network File System PCO Peg Count and Overflow PCO Point of Control and Observation PCO Process Change Order PCONNECT Presentation CONNECT PCP PC Pursuit PCPC Personal Computers Peripheral Corporation PCR Post Call Ratio PCR Preventive Cyclic Retransmission PCS Patchable Control Store PCS Permanent Change of Station PCS Personal Communications Services PCS Planning Control Sheet PCS Print Contrast Signal PCS Process Control Systems PCS Program Counter Store PCS Project Control System PCSA Personal Computer System Architecture PCSA Personal Computer Systems Architecture PCSG Personal Computing Systems Group PCSN Private Circuit-Switching Network PCSN Public Circuit Switched Network PCT Program Coding Tools PCTE Portable Common Tool Environment PCTE Portable Common Tools Environment PCTR Protocol Conformance Test Report PCTS Posix Conformance Test Suite PCTV Program Controlled TransVerters PD Peripheral Decoder PD Physical Delivery PD Potential Difference PD Public Domain PDA Personal Digital Assistant PDAD Proposed Draft ADdendum PDAU Physical Delivery Access Unit PDC Primary Digital Carrier PDES Personal Data Exchange Specification PDES Product Data Exchange Specifications PDES Product Data Exchange Standard PDF Portable Document Format PDF Power Distribution Frame PDF Program Development Facility PDI Power and Data Interface PDIP Plastic DIP PDISP Proposed Draft ISP PDL Page Description Language PDL Page Design Language PDL Program Description Language PDL Program Design Language PDL Push Down List PDM Power Down Mode PDM Pulse Duration Modulation PDN Packet Data Network PDN Packet-switched Data Network PDN Public Data Network PDO Portable Distributed Objects PDP Peripheral Data Processing PDP Plasma Display Panel PDP Progammable Data Processor PDP Programmed Data Processor PDS Partitioned Data Set PDS Physical Delivery Service PDS Portable Display Shell PDS Premises Distribution System PDS Processor Direct Solt PDS Public Domain Software PDSP Peripheral Data Storage Processor PDSS Post Development and Software Support PDTR Proposed Draft Technical Report PDU Product Development Unit PDU Protocol Data Unit PE Parity Even PE Peripheral Equipment PE Phase Encoded PE Phase Encoding PE Printer's Error PE Processing Element PE Professional Engineer PE Protect Enable PEA Pocket Ethernet Adapter PECC Product Engineering Control Center PEDI Protocol for Electronic Data Interchange PEL Picture Element PEM Privacy-Enhanced Mail PEP Packet Exchange Protocol PEP Packetized Ensemble Protocol PEP Performance Enhancement Package PEP Personal Enrichment Program PEP Platform Environment Profile PEP Productivity Enhancement Project PEPE Pepe Est Presque Emacs PEPY Presentation Element Parser (YACC-based) PER Packet Encoding Rules PERFECT PERFormance Evaluation for Cost-Effective Transformations PERL Practical Extraction and Report Language PERT Program Evaluation and Review Technique PES Positioning Error Signal PET Personal Electronic Transfer PETS Parameterized Executable Test Suite PETSCII PET aSCII PEX Phigs/phigs+ Extension to X PEX-SI PEX Sample Implementation PEXSI PEX Sample Implementation PF Programmed Function PFADS Psychological operations Foreign Area Data Subsystem PFB Printer Font Binary PFM Pulse Frequency Modulation PFOFF Power Feed OFF PFPU Processor Frame Power Unit PFR Power-Fail Restart PFS PCM Frame Synchronisation Signal PFS Page Format Selection PGA Pin Grid Array PGA Professional Graphics Adapter PGA Programmable Gate Array PGDN Page Down PGI Parameter Group Identifier PGM Program PGP Pritty Good Privacy PGUP Page Up PH Packet Handler PH Packet Header PH Parity High PH Physical PH Process Hold PHA Pulse Height Analysis PHA Pulse Height Analyzer PHIGS Programmer Hierarchical Interactive Graphics System PHIGS Programmer's Hierarchical Interactive Graphics System PHIGS Programmers' Hierarchial Interactive Graphics Standards PHOTOCD PHOTOgraphic Compact Disk PHY PHYsical PI Parameter Identifier PI Physical Inventory PI Priority Interrupt PI Program Interruption PI Protocol Interpreter PIA Peripheral Interface Adapter PIA Plug-In Administrator PIC PCM Interface Controller PIC Personal Identification Code PIC Plastic-Insulated Cable PIC Polyethelene Insulated Cable PIC Polyolefin Insulated Cables PIC Position Independant Code PIC Primary Independent Carrier PIC Priority Interrupt Controller PIC Program Interrupt Controller PICS Plug-In Inventory Control System PICS Protocol Implementation Conformance Statement PID Process IDentifier PID Proprietary Information Disclosure PID Protocol IDentifier PIF Program Information File PIFT Protocol Interbank File Transfer PILOT Programmed Inquiry Learning Or Teaching PIM Personal Information Manager PIN Personal Identification Number PIN Process Identification Number PINE Pine Is Not Elm PING Packet InterNet Groper PIO Parallel Input/Output PIO Processor Input/Output PIO Programmed Input/Output PIOCS Physical I/O System PIP Packet Interface Port PIP PCM Interface Port PIP Packet Interface Port PIP Peripheral Interchange Program PIP Picture In Picture PIP Programmable Interconnect Point PIPO Parallel In, Parallel Out PIT Programmable Interval Timer PITR Product Interoperation Test Report PIU PCM Interface Unit PIXEL PIcture ELement PIXIT Protocol Implementation eXtra Information for Testing PJL Printer Job Language PK Phil Katz PKCS Public Key Crypto System PKE Public Key Encryption PKT Packet PL Parity Low PL Plus PL Presentation Layer PL Private Line PL/1 Programming Language One PL/M Programming Language for Micros PL1 Programming Language One PLA Programmable Logic Array PLA Programmed Logic Array PLAN Public Lands Action Network PLATO Programmed Learning for Automated Teaching Operations PLATO Programmed Logic for Automatic Teaching Operations PLC Physical Link Control PLC Programmable Logic Controller PLCC Plastic Leaded Chip Carrier PLCC Plastic Leadless Chip Carrier PLCP Physical Layer Convergence Protocol PLD Partial Line Down PLD Programmable Logic Device PLIC PCM Line Interface PLL Phase-Locked Loop PLM Programming Language for Microcomputers PLO Please Leave On PLOKTA Press Lots Of Keys To Abort PLP Packet Layer Protocol PLP Presentation Level Protocol PLS PhysicaL Signaling PLS Physical Layer Signaling PLS Programmable Logic Sequencer PLSAP Physical Layer Service Access Point PLT Panduit Locking Tie PLU Partial Line Up PLU Primary Logical Unit PLV Production Level Video PM Performance Management PM Peripheral Module PM Phase Modulation PM Plant Management PM Presentation Manager PM Preventative Maintenance PM Preventive Maintenance PM Program Manager PM Project Manager PM Protocol Machine PM/X Presentation Manager for X windows PM/X Presentation Manager for the X window system PMA Physical Medium Attachment PMAC Peripheral Module Access Controller PMC Permanently Manned Capability PMD Physical Media Dependent PMD Physical Memory Dependent PMDF Pascal Memo Distribution Facility PMEG Page Map Entry Group PMG Page Map Group PMI Private Memory Interconnect PMMU Paged Memory Management Unit PMN Performance Monitoring PMOS P channel Metal Oxide Semiconductor PMOS Positive Channel Metal Oxide Semiconductor PMR Poor Mans Routing PMS Pantone Matching System PMS Peoples Message Service PMT Packet Mode Terminal PMT Planning Methodology Team PMU Precision Measurement Unit PMX Presentation Manager for the X window system PMX Private Message eXchange PN Part Number PN Personal NAme PN Positive Notification PN Pseudo Noise PNA Private Network Adapter PNB Pacific Northwest Bell PNC Personal Number Calling PNIC Private Network Identification Code PNP Plug aNd Play PNP Positive-Negative-Positive PNP Private Numbering Plan PNPN Positive-Negative-Positive-Negative PO Parity Odd PO Purchase Order POAC Probe Origin Authentication Check POB Peripheral Order Buffer POC Point of Contact POD Piece Of Data POF Programmable Operator Facility POK Power on Okey Signal POL Problem Oriented Language POM Phase Of Moon POM Point of Manufacturing POP Point Of Presence POP Point Of Production POP Pop from Stack POP Post Office Protocol POP Processor On Plug-in POPA Pop All Registers POPF Pop Flags POPS Paperless Order Processing System POS Point Of Sale POS Positive POS Professional Operating System POS Programmable Object Select POSES Portable Oprating System Environment Standard POSI Promoting conference for OSI POSI Promoting conference for OSI POSIX Portable Operating System Interface eXtensions POSIX Portable Operating System for unIX POSIX Portable Operating System for unIX POST Power-On Self Test POSTNET Postal Numeric Encoding Technique POSYBL PrOgramming SYstem for distriButed appLications POT Point of Termination POTS Plain Old Telephone Service POTS Plain Old Telephone System POTS Plain Ordinary Telephone System POV Point Of View POWER Performance Optimization With Enhanced Risc PP Post Pay PP Painting Processor PP PingPong PP Primary Point PP&E Production, Planning, and Execution PPBS Planning, Programming, and Budgeting Systems PPCI Presentation Protocol Control Information PPCS Person to Person, Collect, Special PPD Peripheral Pulse Distributor PPD Postscript Printer Description PPD Product Phase Down PPDS Personal Printer Data Stream PPDU Presentation Protocol Data Unit PPE PCBoard Programming Extensions PPH Pages Per Hour PPL PCBoard Programming Language PPL Periodic Payment License PPM Page Per Minute PPM Pages Per Minute PPM Parts Per Million PPM Presentation Protocol Machine PPM Product Portfolio Management PPN Private Packet Network PPN Project Program Number PPN Project-Programmer Number PPP Point-to-Point Protocol PPS Product Performance Surveys PPS Packets Per Second PPS Packets per Second PPS Product Performance Surveys PPS Public Packet Switching PPS Pulses Per Second PPSN Public Packet Switched Network PPSU Personal Printer Spooling Utility PPT Pulse Pair Timing PPT Punched Paper Tape PPTM Protocol Profile Testing Methodology PPU Power Providing Unit PQFP Plastic Quad Flat Pack PR PRepare PR Phase Representation PRA PRimary Rate Access PRAM Parameter RAM PRAM Programmable RAM PRC Planning Research Corporation PRCA Puerto Rico Communications Authority PRD PAL/PROM Programming Department PRDMD PRivate Directory Management Domain PRE Prefix PREFUSE Presentation REFUSE PREMIS PREMises Information System PREPNET Pennsylvania Research & Economic Partnership Network PRG PuRGe PRI Primary Rate Interface PRID PRotocol IDentifier PRISM Parallel Reduced Instruction Set Multiprocessing PRMD PRivate Management Domain PRN Printer PROC Procedure PROFS PRofessional OFfice System PROFS PRofessional OFfice Systems PROG Program PROG Programmer PROLOG PROgramming in LOGic PROM Programmable Read-Only Memory PROMATS PROgrammable Magnetic Tape System PROMIS Prosecutors Management Information Systems PROPAL PROgrammed PAL PROTEL PRocedure Oriented Type Enforcing Language PRS Personal Response System PRTC Puerto Rico Telephone Company PRTSC Print Screen PS Packet Switching PS Personal Services PS Personal System PS PicoSecond PS PostScript PS Power Supply PS Preferred Service PS Presentation Service PS Program Store PS Programming System PS Proposed Standard PSA Problem Statement Analyzer PSAP Presentation Service Access Point PSAP Public Safety Answering Point PSC Prime Service Contractor PSC Pittsburgh Supercomputer Center PSC Product Service Center PSC Protection Switching Circuit PSC Protocols Standards and Communications PSC Public Safety Calling system PSC Public Service Commission PSD Protocol Software Development PSDC Public Switched Digital Capability PSDN Public-Switched Data Network PSDN Packet-Switched Data Network PSDS Public Switched Digital Service PSDU Presentation Service Data Unit PSE Packet Switch Exchange PSE Packet Switching Exchange PSE Programming Support Environment PSEL Presentation SELector PSF Packet Switching Facility PSF Point Spread Function PSG Peripheral and Supplies Group PSG Product Shipping Guide PSG Professional Service Group PSH PuSH PSI Packet Switch Interface PSI Performance Summary Interval PSI Performance Systems International PSI Process to Support Interoperability PSIU Packet Switch Interface Unit PSK Phase-Shift Keying PSL Problem Statement Language PSL Protocol Source Library PSL Public Software Library PSM Packet Service Module PSM Position Switching Module PSM Professional Service Manager PSN Public Switched Network PSN Packet Switch Node PSN Packet Switched Network PSN Packet Switching Network PSN Packet Switching Node PSN Packet-Switched Network PSN Packet-Switching Node PSN Private Switching Network PSO Pending Service Order PSP Product Support Plan PSP Program Segment Prefix PSPDN Packet-Switching Public Data Network PSR Product Specific Realizations PSR Product Specific Release PSRAM Pseudo-Static Random Access Memory PSS Packet Switch Stream PSS Packet Switched Services PSS Professional Software Services PSTN Public Switched Telephone Network PSU Program Storage Unit PSU Portable Storage Unit PSU Program Storage Unit PSW Program Status Word PSWM PostScript Window Manager PT Page Table PT Pass Through PT Please Token PT PoinT PT Program Timer PTAN Performance Testing Alliance for Networks PTAT Private Trans Atlantic Telecommunications PTC Public Telephone Companies PTD Parallel Transfer Disk PTD Parallel Transfer Drive PTE Packet Transport Equipment PTE Page Table Entry PTG Physical Technology Group PTI Portable Test Instrument PTN Plant Test Number PTO Power Take-Off PTP Point To Point PTS Position and Trunk Scanner PTT Post, Telephone and Telegraph administration PTT Postal, Telephone, and Telegraph administration PTTXAU Public TeleTeX Access Unit PTW Primary Translation Word PTXAU Public Telex Access Unit PTY Pseudo-TTY PU Physical Unit PU Power Up PUB Publication PUB Publish PUC Peripheral Unit Controller PUC Public Utilities Commission PUC Public Utilities Company PUD Planned Unit Development PUM PU Mode PUMA Programmable Universal Micro Accelerator PUP PARC Universal Packet protocol PUSHA Push All Registers PUSHF Push Flags PV Parameter Value PV PhotoVoltaic PVC Permanent Virtual Circuit PVC Permanent Virtual Circuits PVC PolyVinyl Chloride PVM Pass-through Virtual Machine PVN Private Virtual Network PVT Permanant Virtual Terminal PWB Printed Wire Board PWB Printed Wiring Board PWB Programmers Work Bench PWD Print Working Directory PWG Permanent Working Group PWI Public Windows Interface PWM Pulse Width Modulation PWR Power PYP Point-To-Point Q-CIF Quarter CIF QA Quality Assurance QAM Quadrature Amplitude Modulation QAS Quasi-Associated Signaling QBE Query By Example QBF Query by Form QC Quality Control QDCS Quality, Deliverly, Cost, Safety QDCS Quality, Deliverly, Cost, Service QDOS Quick and Dirty Operating System QDSS Q-Bus Dragon Sub-System QED Quantum ElectroDynamics QEMM Quarterdeck Expanded Memory Manager QET Quantum Effect Transistor QFA Quick File Access QFP Quad Flat Pack QIC Quality Information Using Cycle Time QIC Quarter-Inch Cartridge QIS Quality Information System QLI Query Language Interpreter QLLC Qualified Logical Link Control QMF Query Management Facility QMP Quality Measurement Plan QMS Quality Micro Systems QOS Quality Of Service QPA Quality Program Analysis QPSK Quadrature Phase Shift Keying QPSX Queued Synchronous Packet eXchange QRSS Quasi Random Signal Source QSC Quad S Interface Circuit QSO QWK Support Option QSS Quality Solution Systems QSS Quality Surveillance System QTAM Queued Telecom Access Method QTC Quantitative Technology Corporation QUEL QUEry Language QUERRI Questions on University Extension Regional Resource Information QVSS Q-Bus Viper Sub-System R Ring R&D Research and Development R&R Rate & Route R&SE Research & Systems Engineering R/O Read/Only R/W Read Write R/W Read/Write R/W Read/Write R/WM Read/Write Memory R/WM Read/Write Memory RA Rate Adapter RA Rate Adaption RA Recognition Arrangement RA Registration Authority RA Return Authorization RACE R&D in Advanced Communication in Europe RACE Random Access Card Equipment RACEP Random Access and Correlation for Extended Performance RACF Resource Access Control Facility RAD Rapid Access Disk RAD Receive Adress RAG Registration and Advisory Group RAG Row Address Generator RAID Redundant Arrays of Inexpensive Disks RALU Register Arithmetic Logic Unit RAM Random-Access Memory RAM Red Academicia de Mexico RAMDAC Random Access Memory Digital-to-Analog Converter RAMP Reliability, Availability, Maintainability Program RAND Random RAND Rural Area Network Design RAO Regional Accounting Office RAO Revenue Accounting Office RAR Return Address Register RAR Return Address Register RARE Reseaux Associes pour la Recherche Europeenne RARP Reverse Address Resolution Protocol RAS Random Access Storage RAS Reliability, Availability, and Serviceability RAS Remote Access Services RAS Row Address Select RASC Residence Account Service Center RATFOR RATional FORtran RATS Radio Amateur Telecommunications Society RBBS Remote Bulletin Board System RBEF Read Block Error counter for Far end RBEN Read Block Error counter for Near end RBHC Regional Bell Holding Company RBOC Regional Bell Operating Company RBOR Request Basic Output Report RBT Reliable Broadcast Toolkit RC Receive Clock RC Reduced Cost RC Regional Center RC Repair Center RC Resistance-Capacitance RC Resistor-Capacitor circuit RC Run Command RCA Radio Corporation of America RCAS Reserve Component Automation System RCC Radio Common Carrier RCC Remote Cluster Controller RCC Request Corrupted CRC RCC Reverse Command Channel RCF Remote Call Forwarding RCI Read Controller Interface RCI Rodent Cage Interface RCL Rotate Carry Left RCL Route Clock RCL Runtime Control Library RCLDN Retrieval of Calling Line Directory Number RCM Remote Carrier Module RCMAC Recent Change Memory Administration Center RCMAC Recent Change Memory Administration Center RCP Remote CoPy RCP Restore Cursor Position RCR Rotate Carry Right RCRE Receive Corrected Reference Equivalent RCS Reaction Control System RCS Records Communications Switching System RCS Revision Control System RCSC Remote Spooling Communications Subsystem RCU Rack Controller Unit RCU Radio Channel Unit RCU Repeater Control Unit RCVR ReCeiVeR RD Receive Data RD Received Data RD Remove Directory RDA Remote Data Access RDA Remote Database Access RDB Receive Data Buffer RDB Relational Data Base RDBMS Relational DataBase Management System RDBMS Relational DataBase Management System RDCLK Received Timing Clock RDES Remote Data Entry System RDF Radio Direction Finding RDL Relational Database Language RDL Remote Digital Loopback RDM Reliably-Delivered Message RDN Relative Distinguished Name RDP Reliable Data Protocol RDP Reliable Datagram Protocol RDS Radio Digital System RDS Random Dot Stereogram RDS Running Digital Sum RDSN Region Digital Switched Network RDSR Receiver Data Service Request RDT Radio Digital Terminal RDT Referenced Data Transfer RDT Remote Digital Terminal RDT Remote Digital Terminal RDT Restricted Data Transmissions RE Radiated Emission RE Reference Equivalent RE Regular Expression RE Routing Element REC Receiver REC Regional Engineering Center REG Register REGAL Rigid Epoxy Glass Acrylic Laminate REGEP Regular Expression REGEX Regular Expression REGIS REmote Graphics Instruction Set REJ REJect REL Release RELSECT Relative Sector REM Remote Equipment Module REM Rat Enclosure Module REM Remark REM Remote REM Remote Equipment Module REM Ring Error Monitor REMOBS REMote OBservation System REMSH Remote Shell REN Rename REN Ring Equivalence Number REN Ringer Equivalence Number REO Removable, Erasable, Optical REP Repeat REP Repertory Dialing REPE Repeat while Equal REPNE Repeat while Not Equal REPNZ Repeat while Not Zero REPZ Repeat while Zero REQ Request REQSPEC REQuirements SPECification RES Reset RES Resolution RES Resume RET Resolution Enhancement Technology RET Return RETCON RETroactive CONtinuity RETMA Radio Electronics Television Manufacturers Association REV Reverse Charging REV Revision REX Relocatable Executable REX Remote EXecution REXX Restructured EXtended eXecutor RF Radio Frequency RFC Request For Comment RFC Request For Comments RFE Radio Free Ethernet RFE Request For Enhancement RFI Radio Frequency Interference RFI Request For Information RFP Request for Proposal RFS Remote File Server RFS Remote File Sharing RFS Remote File System RFT Request For Technology RFT Revisable Form Text RFU Reserved For Future Use RG Radio Governent RG Rapporteur Group RG Renegade RG/U Radio Government/Universal RGB Red-Green-Blue RGBI Red Green Blue Intensity RGP Raster Graphics Processor RGU Radio Government/Universal RHC Regional Holding Company RHOB Relevant Hierarchical Operational Binding RI Reference Implementation RI Referential Integrity RI Ring Indication RI Ring Indicator RI Routing Indicator RIACS Research Institute for Advanced Computer Science RIAS Radio In the American Sector RIB Renderman Interface Bytestream RIB Routing Information Base RID Remote Isolation Device RID Read Identification RID Remote Isolation Device RIFF Resource Interchange File Format RIME RelayNet International Message Exchange RIP Raster Image Processor RIP Remote Imaging Protocol RIPE Reseaux IP Europeenne RIPS Raster Image Processing Systems Corp. RIS Remote Installation Service RISC Reduced Instruction Set Computer RISC Reduced Instruction Set Computing RISD Reference Information Systems Development RISLU Remote Integrated Services Line Unit RIT Rochester Institute of Technology RITA Recognition of Information Technology Achievement award RJ ReJect RJ Registered Jack RJE Remote Job Entry RL Return Loss RLC Release Complete Msg. RLC Resistor Inductor Capacitor RLCM Remote Line Concentrating Module RLE Run Length Encoded RLG Research Libraries Group RLIN Research Libraries Information Network RLL Run Length Limited RLOGIN Remote Login RLRE ReLease-REsponce RLRQ ReLease-ReQuest RLSD Released Msg. RLT Remote Line Test RM Record Marking RM Reference Model RMA Radio Manufacturers' Association RMA Return Materials Authorization RMAS Remote Memory Administration System RMATS Remote Maintenance Admisistration and Traffic System RMDM Reference Model of Data Management RMI Radio Magnetic Indicator RMON Remote MONitor RMR Remote Message Registers RMS Root-Mean-Square RMS Remote Manipulator System RMS Root Mean Squared RN Receipt Notification RN Reference Noise RNE Reseau National d'Essai RNGC Revised New General Catalog RNOC Regional Network Operations Center RNR Receive Not Ready RNR Receiver Not Ready RO Read Only RO Receive Only RO Remote Operations ROAC Report Origin Authentication Check ROB Remote Order Buffer ROC Regional Operating Company ROFF Run-OFF ROH Receiver Off Hook ROIV Remote Operations InVoke ROM Read-Only Memory ROPM Remote Operations Protocol Machine RORE Remote Operations Return Error RORJ Remote Operations ReJect RORS Remote Operations ReSponse ROS Remote Operations Service ROSE RATS Open Systems Environment ROSE Remote Operations Service Element ROSE Remote Operations Service Entity ROTL Remote Office Test Line ROTL Remote Office Test Lines ROTS Rotary Out Trunks Selectors RP Repeater RPC Remote Procedure Call RPE Remote Peripheral Equipment RPFC Read Power Feed Current value RPG RePort Generator RPG Report Program Generator RPG Role Playing Game RPL Remote Procedure Load RPM Reduced Parts Menu RPM Remote Process Management RPM Removable Peripheral Module RPM Revolutions Per Minute RPM Rotations Per Minute RPN Reverse Polish Notation RPOA Recognized Private Operating Agency RPS Rotational Positional Sensing RPV Remotely Piloted Vehicle RQBE Relational QBE RQS Rate/Quote System RQSM Regional Quality Service Management RQT Reliability Quality Test RR Receive Ready RR Receiver Ready RR Resource Record RR Route Relay RRIP Rock Ridge Interchange Protocol RRO Rate and Route Operator RRO Reports Receiving Office RS Radiated Susceptibilty RS Recommended Standard RS Record Separator RS Remote Single-layer RS Reset RS Resume Session RS Revised Status RS&E Research & Systems Engineering RSA Repair Service Attendant RSA ReSume Acknowledgment RSA ReSynchronize Acknowledgment RSA Reference System Architecture RSA Repair Service Attendant RSA ron Rivest, adi Shamir, len Adleman RSAT Reliability and System Architecture Testing RSB Repair Service Bureau RSC Remote Switching Center RSC Reset Confirm RSC Residence Service Center RSCS Remote Source Control System RSCS Remote Spooling Communications Subsystem RSCS Remote Spooling and Communication Subsystem RSE Remote Single-layer Embedded RSE Removable Storage Elements RSE Research & Systems Engineering RSH Remote SHell RSH Restricted SHell RSI Repetitive Strain Injury RSL Remote Ship List RSLE Remote Subscriber Line Equipment RSLM Remote Subscriber Line Module RSM Remote Switching Module RSS Reception Support Statement RSS Remote Switching System RST ReSeT RSTS Resource System Time Sharing RSTS/E Resource Sharing Time Sharing / Extended RSTS/E Resource System Time Sharing / Environment RSTS/E Resource System Time Sharing/Enhanced RSU Remote Switching Unit RSVP RDB Solutions Vendor Program RSY Resynchronizing (C/I channel code) RSYD RSY Downstream RSYU RSY Upstream RT RadioTelephone RT RealTime RT Reliable Transfer RT Remote Terminal (opposite to COT) RT ReporT RT Risc Technology RT Routing Table RTA Remote Trunking Arrangement RTA Real-Time Accelerator RTA Remote Trunk Arrangement RTAB Reliable Transfer ABort RTAC Regional Technical Assistance Center RTB Retransmission Buffer RTBG Real Time Business Group RTC Real-Time Clock RTC Return To Control RTCA Radio Technical Commission of Aeronautics RTD Resistance Temperature Detector RTE Remote Terminal Emulation RTF Rich Text Format RTI Return From Interrupt RTL Resistor-Transistor Logic RTM Regional Telecommunications Management RTM Remote Test Module RTMP Routing Table Maintenance Protocol RTN Return to Normal RTOAC Reliable Transfer Open ACcept RTORJ Reliable Transfer Open ReJect RTORQ Reliable Transfer Open ReQuest RTPM Reliable Transfer Protocol Machine RTR Reel-To-Reel RTS Ready To Send RTS Real Time Systems RTS Reliable Transfer Service RTS Remote Testing System RTS Request To Send RTS Return To Stock RTSE Reliable Transfer Service Element RTSL Read The Source Luke RTT Round Trip Time RTTP Reliable Transfer Token Please RTTR Reliable Transfer Token Response RTTY Radio TeleTYpe RTTY Radio Teletypewriter RTU Right To Use RTU Real Time Unix RTU Remote Trunking Unit RTV Real Time Video RU Receive Unit RUA Remote User Agent RUM Remote User Multiplex RVD Remote Virtual Disk RW Read/Write RWC Remote Work Center RWE Remote Wall Enclosure RWM Read-Write Memory RWSCC Regional WorkShops Coordinating Committee RX Receive RX Receiver RX Remote eXchange RXD Received Data RZ Return To Zero RXSD Receive Serial Data S Sleeve S Siemens S Supervisory (S-Frames) S-Box Skunk Box S-VHS Super VHS S/H Sample and Hold S/N Signal-to-Noise S/W ShareWare S/W Software SA Source Address SA Storage Array SAA Standards Association of Austrailia SAA Systems Application Architecture SABB Storage Array Building Block SABM Set Asynchronous Balanced Mode SABME Set Asynchronous Balanced Mode Extended SABRE Semi-Automated Business Research Environment SAC Service Access Connector SAC Service Area Code SAC Service Area Code SAC Service Area Computer SAC Simplified Access Control SAC Single Association Concentrator SAC Special Area Code SAC Strategic Air Command SACF Single Association Control Function SACK Selective ACK SAE Society of Automotive Engineers SAF Subnetwork Access Facility SAFE Security Awareness From Education SAFENET Survivable Adaptable Fiberoptic Embedded Network SAG Street Address Guide SAI S Activity Indicator SAI Serving Area Interface SAIL Stanford Artificial Intelligence Lab SAINT Symbolic Automatic Integrator SAK Selective AcKnowledgement SAKDC Swiss Army Knife Data Compression SAL Shift Arithmetic Left SALI Standalone Automatic Location Identification SAM Secure Access Multiport SAM Sequential Access Method SAM Serial Access Memory SAM Subsequent Address Msg. SAM Symantic Antivirus for Macintosh SAMA Step-by-step Automatic Message Accounting SANC Signaling Area/Network Code SANE Standard Apple Numeric Environment SAO Single Association Object SAP Second Audio Program SAP Secondary Audio Program SAP Separate Audio Program SAP Service Access Point SAP Service Advertising Protocol SAP Symbolic Assembly Program SAPI Service Access Point Identifier SAR Shift Arithmetic Right SAR Store Address Register SAR Successive Approximation Register SARA Satellite pour Astronomie Radio Amateur SARA Stichting Academisch Rekencentrum Amsterdam SAREX Shuttle Amateur Radio Experiment SARF Security Alarm Reporting Function SARM Set Asynchronous Response Mode SARTS Switched Access Remote Test System SAS Sales Accounting System SAS Severe Alarm Signal SAS Single Attached Station SAS Single Attachment System SAS Single Audio System SAS Statistical Analysis Software SAS Statistical Analysis System SAS Statistically Assigned Sockets SAS Switched Access Services SASE Self Addressed Stamped Envelope SASE Specific Application Service Element SASE System and Support Engineering SASFE Severe Alarm Signal - Far End SASI Shugart Associates System Interface SASI Shugart Associates Systems Interface SASO Saudi Arabian Standards Organization SAT Special Access Termination SAT Supervisory Audio Tone SATF Security Audit Trail Function SATS Selected Abstract Test Suite SAW Surface Acoustic Wave SB SoundBlaster SBA Shipping and Billing Authorization SBB Subtract With Borrow SBB System Building Block SBC S Bus Interface Circuit SBC Single-Board Computer SBCX SBC extended SBDN Southern Bell Data Network SBI Storage Bus Interconnect SBIS Sustaining Base Infotmation System SBMS Southwestern Bell Mobile Service SBR Storage Business Review SBS Skyline Business Systems SBT Software Business Technologies SBU Strategic Business Unit SBUC S Bus Connector SC Scanner Controller SC Secondary Channel SC Sectional Center SC SubCommittee SCA Strategic Capital Acquisitions SCA Sunlink Channel Adapter SCADA Supervisory Control And Data Acquisition SCADC Standard Central Air Data Computer SCAI Switch to Computer Application Interface SCAME SCreen oriented Anti-Misery Editor SCAMP Single-Chip A-series Mainframe Processor SCAN Switched Circuit Automatic Network SCAS Scan String SCAT Stromberg-Carlson Assistance Team SCB Subsystem Control Block SCB System Control Block SCC Serial Communication Controller SCC Serial Communications Controllers SCC Specialized Common Carrier SCC Standards Council of Canada SCC Switching Control Center SCC Synchronous Channel Check SCCP Signaling Connection Control Part SCCS Source Code Control System SCCS Specialized Common Carrier Service SCCS Switching Control Center System SCD Standard Color Display SCE Signal Conversion Equipment SCE Structure Chart Editor SCED SCSI/Ethernet/Diagnostics SCF Selective Call Forwarding SCF System Control Facility SCI SpaceCraft Incorporated SCI Strategic Computing Initiative SCIT Semi-Conductor and Interconnect Technologies SCL Station Clock SCL Switch to Computer Link SCLK Slave CLK SCM Scramble Coder Multiplexer SCM Software Configuration Management SCM Station Class Mark SCM Subscriber Carrier Module SCMP System Cooperative Marketing Program SCMS Serial Copy Management System SCO Santa Cruz Operation SCO Semiconductor Operations SCO Serving Central Office SCODL Scan Conversion Object Description Language SCOOPS SCheme Object Oriented Programming System SCOT Stepper Central Office Tester SCOTS Surveilance and Control Of Transmission Systems SCOTS Surveilance and Control Of Transmission Systems SCP Save Cursor Position SCP Service Control Point SCP Signal Control Point SCP Signal Conversion Point SCP Subsystem Control Port SCP Sunlink Communications Processor SCP System Control Program SCPC Signal Channel Per Carrier SCPD Supplementary Central Pulse Distributor SCR Secure ConveRsion SCR Selective Call Rejection SCR Signaling Configuration Register SCR Silicon Controlled Rectifier SCRAM Static Column RAM SCRC Send Corrected Reference Equivalent SCRN Screen SCS SNA Character String SCS Silicon Controlled Switch SCS System Conformance Statement SCSA Sun Common SCSI Architecture SCSI Small Computer Systems Interface SCTR System Conformance Test Report SCTS Secondary Clear To Send SCU Selector Control Unit SCUSA Standards Council of the USA SCX Specialized Communications eXchange SD SCSI Disk SD Send Data SD Slip Detected SD Starting Delimiter SD&D Specific Development & Design SDA Security Domain Authority SDA Send Data with immediated Ackonwledge SDA Software Design Automation SDA Software Disk Array SDA Source Data Automation SDA System Display Architecture SDAP Standard Document Application Profile SDB Source DeBugger SDC Software Distribution Center SDCD Secondary Data Carrier Detect SDD Specific Development & Design SDE Submission and Delivery Entity SDF Secondary Distribution Frame SDF SubDistribution Frame SDH Synchronous Digital Hierarchy SDI Selective Dissemination of Information SDI Space Defense Initiative SDI Standard Disk Interconnect SDI Standard Disk Interface SDI Standard Drive Interface SDI Storage Device Interconnect SDI Strategic Defense Initiative SDI Supplier Declaration of Interoperation SDI Switched Digital International SDIF SGML Document Interchange Format SDIO Strategic Defense Initiative Organization SDIS Switched Digital Integrated Service SDK Software Developers' Kit SDK Software Development Kit SDL Specification and Description Language SDL System Design Language SDL/GR SDL/Graphical Representation SDL/PR SDL/Phrase Representation SDLC Synchronous Data Link Control SDLC Systems Development Life Cycle SDLP Standard Device Level Protocol SDM Space Division Multiplex SDM Sub-rate Data Multiplexer SDN Software-Defined Network SDN System Development Network SDNS Secure Data Network Service SDNS Secure Data Network System SDOC Selective Dynamic Overload Controls SDP Service Delivery Point SDP Service Delivery Point SDP Store Delivery Point SDP Streaming Data Procedure SDP Submission and Delivery Protocol (X.411) SDR Store Data Register SDR Streaming Data Request SDRC Structural Dynamics Research Corporation SDS Sales and Distribution Systems SDS Switched Data Service SDS Synchronous Data Set SDS Sysops Distribution System SDSC San Diego Supercomputer Center SDSC Synchronous Data Set Controller SDSE Shadowed DSA Specific Entry SDT Software Development Tools SDU Service Data Unit SD_STB Streaming Data Strobe SE Session Entity SE Systems Engineer SEA Standard Extended Attribute SEA System Enhancement Associates SEAC Standard Eastern Automating Computing SEAP Service Element Access Point SEAS Signaling Engineering and Administration System SEC Signal level behind the Echo Canceller SEC Single Error Correction SECAM SEquential Couleur A Memoire SECAM SEquential Couleur Avec Memoire SECAM Sequential Color And Memory SED Smoke Emitting Diode SED Stream EDitor SEE Systems Equipment Engineering SEF Source Explicit Forwarding SEG Segment SEI Software Engineering Institute SEI Space Exploration Initiative SEK Swedish Electrical Commission SEL SELector SEL Select SEL Software Engineering Laboratory SELV Safety Extra-Low Voltage SEM Scanning Electron Microscope SEM Standard Electronic Module SEO Semiconductor Engineering Organization SER Serial SERC Science & Engineering Research Council SES Service Evaluation System SES Severely Errored Second SESFE Severely Errored Second Far End SESP Severely Errored Second Path SET Software Engineering Technology SETS Selected Executable Test Suite SEU Smallest Executable Unit SEX Sign EXtend SEX Software EXchange SF Service Field SF Sign Flag SF Single Frequency SF Standard Form SF Status Field SF Summarization Function SF Supervision Control Frequency SFB Set next FEBE to zero SFD Simple Formattable Document SFD Start of Frame Delimiter SFD Sun Federal Division SFD Superframe Detected SFDM Statistical Frequency Division Multiplexing SFE Secure Front End SFI Single Frequency Interface SFI Society for the Freedom of Information SFLA Stupid Four Little Acronyms SFMC Satellite Facility Management Center SFQL Structured Full-text Query Language SFS Suomen Standardisoimislitto SFT System Fault Tolerance SFT System File Table SFU Store and Forward Unit SFX Sound Effects SFX Special Effects SG Signal Ground SG SubGroup SG SuperGroup SGC Switching Group Control SGDT Store Global Descriptor Table SGEN System Generator SGFS Special Group on Functional Standardization SGH Select Graphic Rendition SGI Silicon Graphics Incorporated SGISP Special Group on International Standardized Profiles SGML Standard Generalized Markup Language SGML Standard Generic Markup Language SGML-B SGML-Binary SGMP Simple Gateway Management Protocol SGMP Simple Gateway Monitoring Protocol SGR Set Graphics Rendition SHAR SHell ARchiver SHF Super High Frequency SHI Select Horizontal Spacing SHIBNI Shipped But Not Invoiced SHL Shift Logical Left SHR Shift Logical Right SI Status Indicator SI Sequenced Information SI Service Indicator SI Session Identifier SI Shift-In SI Singapore-Indonesia SI Source Index SI Status Indicator SI System Information SI System Integrater SI System International SIA Semiconductor Industry Association SIA Stable Implementation Agreements SIAM Society for Industrial and Applied Mathematics SIC Silicon Integrated Circuit SICOFI Signal Processing Codec Filter SICS Service Implementation Conformance Statement SID Source IDentifier SID Station Identification SID System IDentification SIDES Siemens ISDN Software Development and Evaluation System SIDH System Identification Home SIDT Store Interrupt Descriptor Table SIF Signaling Information Field SIG Signaling equipment SIG Special Interest Group SIGCAT Special Interest Group for Cd-rom Applications Technology SIGCAT Special Interest Group on CD-ROM Applications and Technology SIGMA Software Industrialized Generator and Maintenance Aids SIGS Signaling Strobe SIM Service Industry Marketing SIM Set Initialization Mode SIM Simulator SIM Society for Information Management SIMD Single Instruction, Multiple Data SIMM Single Inline Memory Module SIMM System Integrated Memory Module SIMULA Simulation SIN Status Indication Normal Alignment SINE SINE is not EINE SIO Security Information Object SIO Service Information Octet SIP Serial Interface Port SIP Service Identification Packet SIP Single In-line Package SIP Single Inline Pin SIPB Siemens ISDN PC User Board SIPMOS Siemens P MOS SIPO Serial In, Parallel Out SIPO Siemens ISDN PC Software Object Code SIPP Single In-line Pin Package SIPS Satellite Imagery Processing System SIPS Siemens ISDN PC Software Source Code SIRDS Single Image RDS SIS Software Information Services SIS Standardiseringskommissionen i Sverige SIS Strategic Information System SIS Structured Information Store SISAL Streams and Iteration in a Single-Assignment Language SISCOM Satellite Information System COMpany SISD Single Instruction Single Data SISO Serial In, Serial Out SIT Special Information Tone SITA Societe Internationale Telecommunications Aeronautiques SITAC Siemens Isolated Thyristor AC SIU Subscriber Line Interface Unit SL Session Layer SL Subscriber Line SLA Service Level Agreement SLA Special Libraries Association SLA Subscriber Line Adress SLA Synchronous Line Adapter SLALOM Scalable Language-independent Ames Laboratory One-minute Measurement SLC Service Level Contract SLC Signaling Link Code SLC Software License Configurator SLC Subscriber Loop Carrier SLD Subscriber Line Data bus SLDC Synchronous Data Link Control SLDT Store Local Descriptor Table SLE Screen List Editing SLE Screening Line Editor SLED Single Large Expensive Disk SLED Single Large Expensive Drive SLIC Subscriber Line Interface Card SLIC Subscriber Line Interface Circuit SLIC System Link and Interrupt Controller SLIM Subscriber Line Interface Module SLIP Serial Line Interface Protocol SLIP Serial Line Internet Protocol SLM Subscriber Line Module SLMA SLM Analog SLMD SLM Digital SLMR Silly Little Mail Reader SLS Signaling Link Selection SLS Storage Library System SLSI Super Large-Scale Integration SLU Secondary Logical Unit SLU Serial Line Unit SM Service Module SM Set Mode SM Speech Memory SM Switching Module SMA Software Maintenance Association SMA Spectrum Manufacturers Association SMAE System Management Application Element SMAP System Management Application Process SMART Simply Making All Resources Tiny SMAS Supplementary MAin Store SMAS Switched Maintenance Access System SMASE System Management Application Service Entity SMASF Switched Maintenance Access System Frame SMASPU Switched Maintenance Access System Power Unit SMB System Message Block SMC Standard MicroSystems Corp. SMD Storage Module Device SMD Surface Mounted Device SMDF Subscriber Main Distributing Frame SMDI Storage Module Disk Interconnect SMDI Subscriber Message Desk Interface SMDL Standard Music Description Language SMDR Station Message Detail Recording SMDR Station Message Detailed Recording SMDR Station Message Detailing Recording SMDS Switched Multimegabit Data Service SME Society of Manufacturing Engineering SME Society of Manufacturing Engineers SMEGMA Sophisticated Modern Editor with Gloriously Magnificent Abilities SMF Standard Message Format SMF Sub Multi Frame SMF Super MetaFile SMF System Management Function SMFA Specific Function Management Function SMG SuperMasterGroup SMI Simple Mail Interface SMI Structure of Management Information SMI Sun Microsystems Inc. SMI System Management Interrupt SMI System Management Interrupts SMIB System Management Information Block SMIF Standard Mechanical Interface SMIT System Management Interface Tool SMK Shared Management Knowledge SMK Software Migration Kit SMM System Management Mode SMM System Management Module SMO System Management Overvire SMOH Since Major OverHaul SMOP Simple Matter Of Progamming SMOP Small Matter Of Programming SMP Simple Management Protocol SMP Standby Monitor Present SMP Symbolic Manipulation Program SMP Symmetric MultiProcessing SMPDU Service Message PDU SMPDU System Management PDU SMPS Switching Mode Power Supply SMPT Society of Motion Picture and Television Engineers SMR Service Marketing Representative SMS Self Maintenance Services SMS Service Management System SMS Station Management System SMS Storage Management Services SMSA Standard Metropolitan Statistical Area SMSW Store Machine Status Word SMT Station ManagemenT SMT Surface-Mount Technology SMTP Simple Mail Transfer Protocol SMU Strategic Marketing Unit SMU System Management Utility SN Serial Number SN SubNetwork SN Subnetwork Number SNA System Network Architecture SNA Systems Network Architecture SNACP SubNetwork ACcess Protocol SNADS System Network Architecture Distribution Service SNADS Systems Network Architecture Distribution Service SNAP Shipboard Non-tactical Automated data Processing program SNAP SubNetwork Access Protocol SNAP System and Network Administration Program SNARE SubNetwork Address Resolution Entity SND Sound SNDCF SubNetwork Dependent Covergent Facility SNDCP SubNetwork Dependent Convergence Protocol SNES Super Nintendo Entertainment System SNET Southern New England Telephone SNF Server Normal Format SNF Server-Natural Format SNICF SubNetwork Independent Convergent Facility SNICP SubNetwork Independent Convergence Protocol SNM SunNet Manager SNMP Simple Network Management Protocol SNOBOL StriNg Oriented symbOLic Language SNP Serial Number/Password SNPA SubNetwork Point of Attachment SNPC Software New Products Committee SNR Signal-to-Noise Ratio SNRM Set Normal Response Mode SNTSC Super NTSC SNV Swiss Association for Standardization SO Shift-Out SO System Option SOAC Service Order Analysis Control SOADS Special Operations Automated Data Base SOAP Symbolic Optimizing Assembler Program SOAR Smalltalk On A Risc SOC Service Oversight Center SOC Systems and Option Catalog SOCC Standard Optical Cable Code SOCRATES Special Operations Research, Analysis, and Threat Evaluation System SOE Standard Operating Environment SOE Standards of Excellence SOGITS Seinor Officials Group for Information Technology Standards SOGT Seinor Officials Group for Telecommunications SOH Service Order History SOH Start of Header SOH Start of Heading SOHO Small Office Home Office SOL Simulation Oriented Language SOM Start of Message SOM System Object Model SOMM Stop On Micro-Match SONAR Service Order Negotiation And Retrieval SONDS Small Office Network Data System SONET Synchronous Optical NETwork SOP Standard Operating Procedure SOP Standard Operating Procedures SOS Silicon On Sapphire SOS Son Of Stopgap SOS Sophisticated Operating System SOS Standards and Open Systems SOS Support On Site SOST Special Operator Service Treatment SOTA State Of The Art SOTS Slap On The Side SP Security Protocol SP Sharp Private SP Signal Point SP Signal Processor SP Signaling Point SP Stack Pointer SP Star Patrol SP Stimulus Protocol SP System Product SPA Software Publishers Association SPAG Standards Promotion and Applications Group SPAN System Performance ANalyzer SPAN Space Physics Analysis Network SPAN System Performance ANalyzer SPAR Stock Points Adp Replacement SPARC Scalable Processor ARChitecture SPARC Standards, Planning, And Requirements Committee SPC Sega Public Company SPC Signaling Point Code SPC Small Peripheral Controller SPC Software Productivity Consortium SPC Software Publishing Corp. SPC Southern Pacific Communications SPC Statistical Process Control SPC Stored Program Control SPC Stored Program Controlled SPCL Spectrum Cellular Corporation SPCR Serial Port Control Register SPCS Stored Program Control Systems SPCSS Stored Program Control Switching System SPD Software Product Description SPD Software Products Division SPDA Supplier Data Program SPDL Standard Page Description Language SPDM Special Purpose Dextrous Manipulator SPDU Session PDU SPE Symbolic Programming Environment SPEC Standard Performance Evaluation Corporation SPEC Systems Performance Evaluation Cooperative SPF Shortest Path First SPF System Programming Facility SPG Software Product Group SPI Serial Peripheral Interface SPI Safeguarding Proprietary Information SPI Self-Paced Instruction SPI Serial Peripheral Interface SPI Service Provider Interface SPI Software Patent Institute SPICE Simulator Program for Integrated Circuit Emulation SPICE Special Purpose Integrated Communications Equipment SPIKE Science Planning Intelligent Knowledge-Based Environment SPIM Sun Product Information Meeting SPINTCOMM Special Intelligence Communications SPITBOL SPeedy ImplemenTation of snoBOL SPL Set Priority Level SPL Spooler SPL Systems Programing Language SPM Session Protocol Machine SPM Software Performance Monitor SPN Signal Processor Networking SPOOL Simultaneous Peripheral Operations OffLine SPP Sequenced Packet Protocol SPP Ship Plan SPR Software Problem Report SPS Software Product Services SPS Standby Power System SPSS Statistical Package for the Social Sciences SPT Sectors Per Track SPU System Processing Unit SPUC/DL Serial Peripheral Unit Controller/Data Link SPUD Storage Pedestal Upgrade Disk SPUD Storage Pedestal Upgrade Drive SPUR Systech Pluraxial Unplug Repeater SPX Sequenced Packet eXchange SQ Squeezed SQA Software Quality Assurance SQD Signal Quality Detector SQE Signal Quality SQE Signal Quality Error SQL Structured Query Language SQL/DS Structured Query Language/Data System SQM Software Quality Management SQRT Square Root SQUID Superconducting QUantum Interface Device SR Shift Register SRA Selective Routing Arrangement SRAM Scratchpad RAM SRAM Shadow Random Access Memory SRAM Static Random Access Memory SRC System Resource Center SRD Secondary Receive Data SREJ Selective REJect SRG Short and Ring Ground SRG Strategic Relations Group SRI Stanford Research Institute SRO Sharable and Read Only SRP Source Routing Protocol SRQ Service Request SRR Serially Reusable Resource SRS Service Repair System SRT Source Routing Transparent SRTC Service Right-to-Copy SRTS Secondary Ready To Send SRUAPDU Service Report User Agent PDU SS Seconds SS Secret Service SS Session Service SS Signal Splitter SS Signaling System SS Single Sided SS Sparc Station SS Special Sequence SS Special Services SS Stack Segment SS Standard System SS7 Signalling System #7 SSAM Session Service Access Memory SSAN Social Security Account Number SSAP System Services Access Point SSAS Station Signaling and Announcement Subsystem SSAS Station Signaling and Announcement System SSB Single SideBand SSB Software Supply Business SSBAM Single-SideBand Amplitude Modulation SSBSC Single SideBand Suppressed Carrier SSC Special Services Center SSC Special Services Carrier SSC Specialized Systems Consultants SSC Standard Speech Circuit SSC Superconducting Super Collider SSCP Subsystem Services Control Point SSCP System Services Control Point SSD Solid State Disk SSDU Session Service Data Unit SSE Software Support Engineer SSEC Selective Sequence Electronic Calculator SSEL Session SELector SSF Sub Service Field SSFF Showcase Software Factory of the Future SSG Software Systems Group SSG Strategic Studies Group SSGA System Suppport Gate Array SSI Strategic Simulations Incorporated SSI Serial Signal Interface SSI Small Scale Integration SSI Solid-State Imager SSL Standard Security Label SSN Social Security Number SSN Subsystem Number SSO Satellite Switching Office SSP Sponsor Selective Pricing SSP Send Single Pulses SSP Service Switching Point SSP Signal Switching Point SSP Switching Service Points SSP System Status Panel SSP System Support Program SSPC System Status Panel Controller SSPRU System Status Panel Relay Unit SSR Secondary Surveillance Radar SSRMS Space Station Remote Manipulator System SSS Software Support Services SSS Strowger Switching System SSS System Support Specialist SST Self-Service Terminal SST Spread-Spectrum Technology SSTTSS Space-Space-Time-Time-Space-Space network SSTV Slow Scan TeleVision SSTV Slow Scan TeleVision ST STart ST Seagate Technologies ST Self Test ST Subscriber Terminal STA Spanning Tree Algorithm STAGE Structured Text And Graphics Editor STAIRS Storage And Information Retrieval System STANAG STANdard AGreement STAR Systems and Technology Applications Requirements STARS Software Technology for Adaptable, Reliable Systems STATMUX Statistical Multiplexer STB Software Technical Bulletin STB Start of Text Block STB Strobe STC Serving Test Center STC Set Carry Flag STC Switching Technical Center STC Switching and Testing Center STCR Syncron Transfer Control Register STD Secondary Transmit Data STD Set Direction Flag STD Standard STD State Transition Diagram STD Subscriber Trunk Dialing STD Synchronous Time Division STDA StreetTalk Directory Assistance STDAUX Standard Auxillary STDERR Standard Error STDIN Standard Input STDM Statistical Time Division Multiplexing STDOUT Standard Output STDPRN Standard Printer STE Signaling Terminal Equipment STEP SIDES Static Test of IOS and MF on board STEP Software Test and Evaluation Panel STEP Standard for The Exchange of Product model data STG Strategic Technologies Group STI Set Interrupt Flag STI Standard Tape Interconnect STI Standard Tape Interface STILO Scientific and Technical Intelligence Liaison Office STM Synchronous Transfer Mode STMF STate Management Function STN SuperTwisted Nematic STOC Special Technical Operations Center STORY Screening Tool for Report Files STOS Store String STP Signal Transfer Point STP Self Test Pass STP Shielded Twisted Pair STP Signal Transfer Point STP Software Through Pictures STP Spanning Tree Protocol STR Store Task Register STR Synchronous Transmitter Receiver STRESS Structural Engineering System Solver STRUDL Structural Design Language STS Sales Technical Support STS Shared Tenant Service STS Space-Time-Space network STS Steered Tenant Service STS Synchronous Transport Signal STScI Space Telescope Science Institute STU STand alone User board STX Start of Test STX Start of Text STY Sub-TTY SU Service User SU Signaling Unit SUABORT Service User ABORT SUB Sub-addressing SUB Subroutine SUB Substitute SUB Subtract SUCCESS SUn Corporate Catalyst Electronic Support Service SUERM SU Error Rate Monitor SUG Sun User's Group SUID Set UID SUM Symantec Utilities for Macintosh SUN Stanford University Network SUNDIAG SUN system DIAGnostics software SUNET Swedish University NETwork SUNVIEW SUN's Visual / Integrated Environment for Workstations SUNet Stanford University Network SURANET Southeastern Universities Research Association network SURF Sequent Users Resource Forum SUS Suspend SUSP Suspend SUSP System Use Sharing Protocol SUT System Under Test SVC Switched Virtual Circuit SVC Switched Voice Circuit SVGA Super Video Graphics Array SVID System V Interface Definition SVM Service Module SVP Schematic Verification Program SVP Surge Voltage Protector SVR4 System V Release 4 SVS Select Vertical Spacing SVS Switched Voice Service SVV Software Verification and Validation SVVS System V Validation Suite SVVS System V Verification Suite SWAN Satellite Wide Area Network SWAN Sun Wide Area Network SWB SWap Byte SWB SouthWestern Bell SWBT South Western Bell Telephone SWF ShortWave Fading SWFC Sliding-Window Flow Control SWG Sub Working Group SWIFT Society for Worldwide Interbank Financial Telecommunications SWIFT Society for Worldwide Interbank Financial Transactions SWIFT Society for Worldwide Interbank Financial Transfers SWM Semiconductor Worldwide Management SWM Solbourne Window Manager SWO Standards Writing Organization SWS Scientific Workstation Support SWS Software Services SX SimpleX signaling SXS Step by (X) Step SYC SYstem Control SYLK Symbolic Link SYMPL SYsteMs Programming Language SYN SYNchronize SYN SYNchronizing segment SYN SYNchronous SYNC Synchronous SYP Synchronisation Pulse SYS System SYSGEN SYStem GENeration SYSLOG System Log SYSMOD System Modification SYSOP System Operator T Tip T Tera T Transport function T&C Terms and Conditions T&C Time and Charge T/B Top and Bottom T1/OS T1 Carrier Outstate T1FE T1 carrier Front End TA Terminal Adapter TA Terminal Adaption TA Terminal Adaptor TA Transfer Allowed TA Transferred Account TAB Tape Assembly Bonding TAB Technical Assistance Board TAC TAE Assignment Control TAC Tactical Air Command TAC Technical Assistance Center TAC Terminal Access Circuit TAC Terminal Access Circuit TAC Terminal Access Controller TACACS Terminal Access Controller Access Control System TACCS Tactical Army Combat service support Computer System TAD Telephone Answering Device TAE Transportable Applications Environment TAG Technical Advisory Group TAM Total Available Market TAN Telecomm and Networks TAP Teletex Acess Protocol TAP Technological Assistance Party TAP Telephone Assistance Plan TAP Trans-Atlantic Project TAPCIS The Access Program for the CompuServe Information Service TAPI Telephony API TAR Tape ARchiver TARR Test Action Request Receiver TAS Telephone Answering Service TASC Technical Assistance Service Center TASC Technical Assistance Service Center TASC Telecommunications Alarm Surveillance and Control system TASI Time Assigned Speech Interpolation TASI Time Assignment Speech Interpolation TASM Turbo Assembler TAT Trans-Atlantic Telecom TAT TransAtlantic Telephone TAU Telematic Access Unit TAXI Transparent Asynchronous Tranceiver Interface TB Terabyte TB Treasury Board TBAV ThunderByte AntiVirus TBBS The Bread Board System TBC Token Bus Controller TBG Telecomm Business Group TBITS Treasury Board Information Technology Standard TBO Time Between Overhaul TBPS TeraBytes Per Second TBS Treasury Board Secretariat TBU Terminals Business Unit TC Technical Committee TC Test Conductor TC Timing Center TC Timing Counter TC Toll Center TC Total Color TC Transaction Capabilities TC Transfer Cost TC Transmission Convergence TC Transport Connection TCA Terminal Control Area TCA Terminal Controlled Airspace TCAM Telecommunications Access Method TCAP Transaction Capabilities Application Part TCAP Transaction Capabilities Applications Port TCAS T-Carrier Administration System TCAS Telecommunications Alarm Surveillance TCB Task Control Block TCB Trouble Came Back TCB Trusted Computer Base TCC Technical Consulting Center TCC Trunk Class Code TCCC Technical Committee for Computer Communications TCCC Technical Committee on Computer Communications TCG Test Call Generation TCIF Telecommunications Industry Forum TCM Thermal Conduction Module TCM Time Compression Multiplexer TCM Time Compression Multiplexing TCM Time Compression Multiplexor TCM Trellis-Coded Modulation TCN TeleCommunications Networks TCN Throughput Class Negotiation TCP Test Coordination Procedure TCP Transmission Control Protocol TCP Transport Control Protocol TCP/IP Transmission Control Protocol/Internet Protocol TCR Transient Call Record TCS The Crime Syndicate TCS The Criminal Syndicate TCS Thermal Control System TCS Traction Control System TCS Trans-Carribean System TCSEC Trusted Computer System Evaluation Criteria TCT Toll Connecting Trunk TCU Timing Control Unit TCU Transmission Control Unit TCU Trunk Coupling Unit TD Transmit Data TD Typed Data TDAS Traffic Data Administration System TDC Tape Data Controller TDC Telex Destination Code TDC Terrestrial Data Circuit TDCC Transport Data Coordinating Committee TDCC Transportation Data Coordinating Committee TDD Telecommunications Device for Deaf TDD Telephone Device for the Deaf TDE Terminal Display Editor TDE Transition Diagram Editor TDI Transit Delay Indication TDI Trusted Database Interpretation TDL Test Description Language TDM Time Division Multiplex TDM Time-Division Multiplexer TDM Time-Division Multiplexing TDMA Time-Division Multiple Access TDMS Terminal Data Management System TDMS Terminal Display Management System TDMTLA Too Damned Many TLAs TDR Time Domain Reflectometer TDR Time Domain Reflectometry TDRS Tracking and Data Relay Satellite TDRSS Tracking and Data Relay Satellite System TDS Transit Delay Selection TDSAI Transit Delay Selection And Indication TDSR Transmitter Data Service Request TE Terminal Equipment TE Transit Exchange TE Transverse Electric TEC Technology Exchange Company TEC Tokyo Electronics Corporation TECO Tape Editor and COrrector TECO Text Editor and COrrector TECRAS Technical Reconnaissance and Surveillance TED Tiny Editor TEDIS Trade Electronic Data Interchange System TEHO Tail End Hop Off TEI Terminal Endpoint Identifier TELCO Telephone Company TELEX TELetypewriter EXchange TELEX Teleprinter Exchange TELNET TELecommunications NETwork TELPAC Tube Engineering Panel Advisory Council TELSAM TELephone Service Attitude Measurement TEMA Tubilar Exchanger Manufacturers Association TEML Turbo Editor Macro Language TEMPEST Transient Electro-Magnetic Pulse Emanation STandard TEMPO Technical Military Programming Organization TENEX TEN EXecutive TER Technical Education Resources TERM TERMinal TERMPWR Terminator Power TFA Transparent File Exit TFC Total Full Color TFEL Thin-Film Electroluminescent TFLAP T-carrier Fault-Locating Applications Program TFP Tops Filing Protocol TFS Translucent File System TFS Trunk Forecasting System TFT Thin-Film Transistor TFTP Trivial File Transfer Protocol TG Telegrad TGC Terminal Group Controller TGL Third Generation Language TGN Trunk Group Number TGV Two Guys and a VAX TH Trouble History THENET Texas Higher Education Network THIEF THief Isn't Even Fine THIEF This Here Isn't Even Fine THL Trans Hybrid Loss THOR THermal Optical Recording THOR Tandy High-Intensity Optical Recorder THOR Tandy High-Performance Optical Recording THOR Tandy High-intensity Optical Recording THORN THe Obviously Required Name service THZ TeraHertZ TI Texas Instruments TI Transport Independent TIA Telecommunications Industry Association TIA Telematic Interworking Application TIAP Theater Intelligence Architecture Program TIAS Telematic Interworking Abstract Service TIC Telecom IC TIC TermInfo Compiler TID Target ID TID Transaction ID TIDE Traffic Information Distributor & Editor TIE Terminal Interface Equipment TIFF Tag Image File Format TIFF Tagged Image File Format TIGA Texas Instruments Graphics Architecture TIGER Topologically Integrated Geographic Encoding and Referencing TIM Timing TINA TINA Is Not an Acronym TINA This Is Not an Acronym TIP Target Intelligence Package TIP Team Improvement Program TIP Terminal Interface Processor TIRIS Texas Instruments Registration and Identification System TIRKS Trunk Integrated Record Keeping System TIS Technical Information Systems TIS Trusted Information Systems TISN Tokyo International Science Network TIU Telematic Interworking Unit TIX Teachers Information eXchange TL Total Loss TL Transport Layer TLA Three-Letter Acronym TLAP Token ring Link Access Protocol TLB TransLAN Bridge TLB Translation Lookaside Buffer TLFF Technical Level Feeders Forum TLI Transport Level Interface TLI Transport Library Interface TLM TeLeMatic TLM Trouble Locating Manual TLMA TeLeMatic Agent TLMAU TeLeMatic Access Unit TLN Trunk Line Network TLP Transmission Level Point TLTP Trunk Line and Test Panel TLU Table Lookup TLV Type, Length, Value TLX TeLeX TLXAU TeLeX Access Unit TM Terminal TM Terminal Management TM Test Management TM Test Mode TM Trademark TM Transverse Magnetic TM Trasfer Modus TMA Trunk Module Analog TMAC Treasury department's Multiuser Acquisition Contract TMC Telemarketing Communications TMD Trunk Module Digital TMDF Trunk Main Distributing Frame TMF Test Management Function TMIP The Military Industrial impact Program TMMS Telephone Message Management System TMN Telecommunications Management Network TMO Telephone Money Order TMP Temporary TMP Test Management Protocol TMPDU Test Management Protocol Data Unit TMR Transient Memory Record TMRC Tech Model Railroad Club TMRC Transportation Modeling Research Center TMRS Traffic Measurement and Recording System TMRS Traffic Metering Remote System TMS Time-Multiplexed Switch TMS Time-Multiplexed Switch TMS Time-Multiplexed Switching TMSC Tape Mass Storage Control TMSCP Tape Mass Storage Control Protocol TMX Trunk Module with X-interface TN TelNet TN Telephone Number TN Tone TN Transaction Number TN Twisted Nematic TNC Terminal Node Controller TNC The Networking Centre TNC Threaded Navy Connector TNC Threaded Neill Concelman TNDS Total Network Data System TNN Trunk Network Number TNOP Total Network Operation Plan TNPC Traffic Network Planning Center TNT The NeWS Toolkit TO Telegraph Office TO Test Object TODS Transactions on Database Systems TOEM Technical Original Equipment Manufacturer TOF Top Of File TOF Top Of Form TOI Transfer Of Information TOMS Transactions on Mathematical Software TOOIS Transactions on Office Information Systems TOP Technical Office Protocol TOP Technology and Organizational Performance TOPICS Total On-Line Program and Information Control System TOPLAS Transactions on Programming Languages and Systems TOPQ Top of Queue TOPS Timesharing OPerating System TOPS Tapes and Optical Products TOPS Timesharing OPerating System TOPS Traffic Operator Position System TOPS Transcendental OPerating System TOPS Transparent OPerating System TOPSMP Traffic Operator Position System Multipurpose TORES Text ORiented Editing System TOS Technical and Office Systems TOS Type Of Service TP Test Plan TP Third Party TP Toll Point TP TransPort TP Transaction Processing TP Transport Protocol TP Twisted Pair TPA Transient Program Area TPAD Terminal PAD TPC The Phone Company TPC Trans-Pacific Cable TPC Transaction Processing Performance Council TPC Transaction Processing Performance Council TPC Two Phase Commit TPD Third Party Developers TPDU Transfer Protocol Data Unit TPE Twisted-Pair Ethernet TPI Tracks Per Inch TPL Table Producing Language TPL Traditional Product Line TPM Third-Party Maintenance TPMP Total Performance Measurement Plan TPMP Total network data system Performance Measurement Plan TPO Traveling Post Office TPORT Twisted Pair Port Transceiver TPS Technical Publication Software TPS Technical Publishing Software TPS TeleProcessing Services TPS Thermal Protection System TPS Transaction Processing System TPS Transactions Per Second TPT Third-Party Transfer TPT Twisted Pair Transceiver TPTAE Third-Party Transfer Application Entity TQC Total Quality Control TR Technical Report TR Test Register TR Transfer Register TR Technical Reference TR Terminal Ready TR Test Register TR Test Responder TR Token Ring TR Transfer Register TRAC Technical Recommendations Application Committee TRAC Total Risk Analysis Calculation TRADIC Transistorized Airborne Digital Computer TRAM Target Recognition and Attack Multisensor TRANSPUTOR TRANSistor comPUTER TREAT Trouble Report Evaluation Analysis Tool TRG Tip and Ring Ground TRI Tone Ringer TRIB Transfer Rate of Information Bits TRIC The Rice Institute Computer TRMTR TRamsMiTteR TROFF Text RunOFF TROFF Typesetter new ROFF TROFF Typesetting RunOFF TRON The Realtime Operating system Nucleus TRR Tip-Ring Reverse TRR Token Ring Repeater TRS Tandy Radio Shack TRSA Terminal Radar Service Area TRUC The Rice University Computer TRUSIX TRUSted unIX TRW Thompson, Ramo, and Woolridge TS Time Slot TS Top Secret TS Transport Service TS/SI Top Secret/Sensitive Information TSA Time Slot Assignment TSAP Transport Service Access Point TSAP Transport Service Access Point TSAP Transport Service Access Point [OSI, Networking] TSB Termination Status Block TSC Telecommunications Security Council TSC Tristate Control TSCB Time-Sharing Cookie Bear TSCPF Time Switch and Call Processor Frame TSCPF Time Switch and Central Processor Frame TSD Total System Design TSDU Transport Service Data Unit TSE Technical Support Engineer TSEL Transport Selector TSG Telecommunications Systems Group TSG Timing Signal Generator TSI Time Slot Interchanger TSI Time-Slot Interchange TSM Tech Support Manager TSN Terminal Switching Network TSN The Sierra Network TSO Technical Services Organization TSO Technical Standard Order TSO Time Sharing Option TSOP Thin Small Outline Package TSORT Transmission System Optimum Relief Tool TSP Test SuPervisor TSP Traffic Service Position TSP Technology Strategy and Planning TSP Teleprocessing Services Program TSP Test SuPervisor TSP Thrift Savings Plan TSP Time Synchronization Protocol TSP Traffic Service Position TSP Traveling Salesman Problem TSPS Traffic Service Position Service TSPS Traffic Service Position System TSR Terminate and Stay Resident TSR Test Summary Report TSS Trunk Servicing System TSS Task State Segment TSS Telecommunications Standardization Sector TSS Tethered Satellite System TSS Time-Sharing System TSS Trunk Servicing System TSS&TP Test Suite Structure and Test Purposes TSSDU Typed Data Session Service Data Unit TSST Time-Space-Space-Time network TST Time-Space-Time network TSTN Triple Supertwisted Nematic TSTS Time-Space-Time-Space network TT True Type TT Trunk Type TTA Telecommunication Technology Association TTAP Trust Technology Assessment Program TTC Telecommunication Technology Council TTC Telecommunications Technology Council TTC Terminating Toll Center TTCN Tree and Tabular Combined Notation TTCN.GR TTCN Graphical Representation TTCN.MP TTCN Machine Processable TTD Target Transmit Delay TTF True Type Font TTL Time To Live TTL Transistor-Transistor Logic TTM Time to Market TTMA Tennessee Tech Microcomputer Association TTP Telephone Twisted Pair TTP Trunk Test Panel TTS Transaction Tracking System TTS Trunk Time Switch TTTN Tandem Tie Trunk Network TTU Tennessee Technological University TTX TeleTeX TTXAU TeleTeX Access Unit TTY TeleTYpewriter TTY TeleTYpe TTY TeleTYpewriter TTYC Teletypewriter Controller TUI Text-Based User Interface TUIMG Telecom/Utilities Industry Marketing Group TUNIS Toronto UNIversity System TUP Telephone User Part TUR Traffic Usage Recording TUR Trunk Usage Recording TUR Trunk Utilization Report TV TeleVision TVI Television Interference TVTWM Tom's Virtual TWM TWA Two-Way Alternate TWAIN Toolkit Without An Important Name TWB Terrestrial WideBand TWCB The Whacko Cracko Brothers TWIP TwentIeth of a Point TWM Tab Window Manager TWM Tom's Window Manager TWS Two-Way Simultaneous TWT Traveling-Wave Tube TWT Traveling Wave Tube TWX TeletypeWriter eXchange TX Transaction TX Transmit TXD Transmitted Data TXID Transaction Identifier TXSD Transmit Serial Data TXT Text U Unnumbered U-B Ungermann-Bass UA Unnumbered Acknowledgement UA User Account UA User Agent UA User Area UAB UNIX Appletalk Bridge UAE Unrecoverable Application Error UAE User Agent Entity UAE User Application Entity UAI U Activation Indication UAL User Agent Layer UAOS User Alliance for Open Systems UAPDU User Agent Protocol Data Unit UAR User Action Routine UART Universal Asynchronous Receiver Transmitter UAS UnAvailable Second UASFE UnAvailable Second Far End UASL User Agent SubLayer UBA Unblocking Acknowledgement UBA UniBus Adapter UBA UniBus Adaptor UBC Universal Bibliographic Control UBC Universal Bibliographic Control UBCIM Universal Bibliographic Control/International MARC UBD User Brain Damage UBL Unblocling UCD Uniform Call Distribution UCD Uniform Call Distributor UCL Universal Communications Language UCR Under Cover Removal UCS Uniform Communication Standard UD Unit Data UDB Unified DataBase UDC Universal Digital Channel UDF User Defined Function UDLC Universal DLC UDP User Datagram Protocol UDT Unidata UDT User Defined Type UDTS Unidata Service UDVM Universal Data Voice Multiplexer UE User Element UEC User Environment Component UFD User Friendly Diagnostics UFS Universal File System UG Micro-Grip UG User Group UHF UltraHigh Frequency UI Unit Interval UI Unix International UI Unnumbered Information UI Unnumbered Interrupt UI User Interface UIC U-Interface Unit UIC User Identification Code UID Unique IDentifier UID User IDentification UID User IDentity UIL User Interface Language UIMS User Interface Management System UIP User Interface Program UITP Universal Information Transport Plan UL Underwriters Laboraties UL Underwriters Laboratory UL Universal Labs UL Upload ULA Uncommitted Logic Array ULA Upper-Layer Architecture ULANA Unified Local-Area Network Architecture ULCT Upper-Layer Conformance Testing ULCU Upper Layer Command Unit ULCU Upper Layer Control Unit ULP Upper Layer Protocol ULSI Ultra Large Scale Integration UMA Upper Memory Area UMB Upper Memory Block UMPDU User Message PDU UNC Universal Naming Convention UNCOL Universal Computed Oriented Language UNI User Network Interface UNICOM Universal Integrated Communication UNICOS Universal Compiler FORTRAN compatible UNICS UNiplex Information Computer Services UNIMARC Universal MARC UNISTAR UNIversal Single call Telecommunications Answering & Repair UNIVAC UNIversal Automatic Computer UNJEDI United Nations Joint EDI UNMA Unified Network Management Architecture UNTDI United Nations/Trade Data Interchange UOA U Interface Only Activation UOF Unusual Order Form UP User Part UPC Universal Product Code UPC Utility Port Conditioner UPDS Uninterruptible Power Distribution System UPL User Program Language UPM User Profile Management UPS Uninterruptable Power Systems UPS Uninterruptible Power Supply UPS Uninterruptible Power System UPS United Parcel Service UREP UNIX-RCSC Emulation Program URG URGent URSI Union RadioScientifique Internationale US Unit Separator USAC United States Answer Center USAN University Satellite Network USART Universal Synchronous-Asynchronous Reciever/Transmitter USB Upper SideBand USC User Steering Committee USCIC U.S. Country Information Center USD Underwriters Safety Device USDN United States Digital Network USENET Users Network USERID User Identification USFDC U.S. Financial Data Center USG Unix Support Group USG Unix Support Group USIA United States Information Agency USIBC U.S. Integrated Business Center USITA United States Independent Telephone Association USL Unix System Laboratories USL Unix Systems Laboratories USMP U.S. Manufacturing Planning USO Universal Service Order USO Unix Software Operation USOC Universal Service Order Code USOC niform Service Order Code USP Universal Sampling Plan USPL U.S. Price List USQ Unsqueezed USR USRobotics USR User Service Routines USRT Universal Synchronous Receiver/Transmitter USSA User Supported Software Association USSS User Services and Systems Support UT Upper Tester UT User Terminal UTC Coordinated Universal Time UTC Unable to Comply Ack UTC Unacknowledged Information Transfer Control UTC Unnumbered Information Transfer Control UTE Union Technique de i"Electricite" UTI Universal Text Interchange UTM Universal Transaction Monitor UTMC United Technologies Microelectronics Center UTP Unshielded Twisted-Pair UTR UpTime Ratio UTS Universal Timesharing System UTnet University of Texas Network UUCICO Unix to Unix Copy Incoming Copy Outgoing UUCP UNIX-to-UNIX Copy Program UUCP Unix-to-Unix CoPy UUG Unix User Group UUI User-To-User Information UUO Un-Used Operation UUO Unimplemented User Operation UUS User-to-User Signaling UUT Unit Under Test UV Ultraviolet UVC Universal Voice Channel UVEPROM UltraViolet EPROM UW UnderWriter UWCSA University of Washington Computer Science Affiliates UWS Ultrix Workstation Software V Version V Volt V&H Vertical and Horizontal VA Virtual Address VAB Value Added Business VAB Voice Answer Block VAC Vacuumschmelze VAC Volts of Alternating Current VAD Value Added Dealer VADD Value Added Disk Driver VADS Value Added Data Service VADS Verdix Ada Development System VAGI VESA Advanced Graphics Interface VAL Value VAL Voice Application Language VAM Virtual Access Method VAN Value Added Network VANS Value-Added Network Service VANS Value-Added Network Services VAP Value-Added Process VAP Videotext Access Point VAR Value Added Remarketer VAR Value Added Reseller VAR Value Added Retailer VAR Variable VAS Value-Added Service VASCAR Visual Average Speed Computer And Recorder VASI Visual Approach Slope Indicator VAST Virtual Archive Storage Technology VAV Value Application Venders VAX Virtual Address Extension VAX Virtual Address eXtended VAX Virtual Architecture eXtensions VAXBI VAX Bus Interconnect VAXft VAX Fault Tolerant VB Variable Block VB Visual BASIC VBA Visual BASIC for Applications VBE VGA BIOS Extensions VC Virtual Call VC Virtual Circuit VCB Virtual Circuit Bearer VCC Voltage Common Cathode VCCI Volantary Control Council for Intersive VCI Virtual Channel Identifier VCM Voice Coil Motor VCO Voltage Controlled Oscillator VCPI Virtual Control Program Interface VCR VideoCassette Recorder VCS Virtual Circuit System VDC Volts of Direct Current VDE Verband Deutscher Elektrotechniker VDE Visual Development Environment VDFM Virtual Disk File Manager VDI Video Device Interface VDI Virtual Device Interface VDIFF Visual DIFFerence VDISK Virtual Disk VDL Vienna Definition Language VDM Video Display Metafile VDM Vienna Development Method VDM Virtual DOS Machine VDM Virtual Device Metafile VDS Virtual DMA Services VDT Video Display Terminal VDU Video Display Unit VDU Visual Display Unit VE Value Engineering VEGA Video-7 Enhanced Graphics Adapter VER Verify VER Version VERONICA Very Easy Rodent-Oriented Netwide Guide to Computerized Archives VERR Verify Read Access VERW Verify Write Access VESA Video Electronics Standards Association VEU Volume End User VEX Video Extension to X VEX Voice Extensions to X-Windows VF Video Floppy VF Video Frequency VF Voice Frequency VFAC Verified and Forced Account Codes VFD Vacuum Fluorescent Display VFEA VMEbus Futurebus+ Extended Architecture VFN Vendor Feature Node VFO Variable Frequency Oscillator VFP Vertical Forms Printing VFR Visual Flight Rules VFS Virtual File Store VFS Virtual File System VFT Voice Frequency Telegraph VFU Vertical Forms Unit VFW Video For Windows VFY VeriFY VG Voice Grade VGA Video Graphics Accelerator VGA Video Graphics Array VGB Voice Grade Budget VGC Video Graphics Controller VGF Voice Grade Facility VGG Voltage Gate to Ground VGI Virtual Graphics Interface VHD Very High Density VHD Video High Density VHDL VHSIC Hardware Description Language VHF Very High Frequency VHLL Very High Level Language VHS Very High Speed VHS Video Home System VHS Virtual Host Storage VHSIC Very High Speed Integrated Circuit VI VIsual editor VI Visual Interface VIA Vax Information Architecture VIABLE Vertical Installation Automation BaseLinE VIC V.35 Interface Cable VIFRED VIsual FoRms EDitor VILE VI-Like Emacs VIM Vendor Independent Messaging VIN Vehicle Identification Number VINE Vine Is Not Emacs VINES VIrtual NEtwork Software VINES Virtual Network System VIO Video Input/Output VIO Virtual Input/Output VIP Variable Information Processing VIPER Verifiable Integrated Processor for Enhanced Reliability VIPS Video Image Printer Systems VIRUS Vital Information Resources Under Siege VIS Video Information System VIS Voice Information System VISCA VIdeo System Control Architecture VITA Vme International Trade Association VIU Voiceband Interface Unit VL Virtual Link VLA Very Large Array VLB VESA Local Bus VLBA Very Long Baseline Array VLBI Very Long Baseline Interferometry VLF Very Low Frequency VLIW Very Long Instruction Word VLM Virtual Loadable Modules VLMF Very Low Magnetic Field VLSI Very Large Scale Integration VLSIPS Very Large Scale Immobilized Polymer Synthesis VLT Variable List Table VLT Very Large Telescope VM Virtual Machine VM Virtual Memory VM/CMS Virtual Machine/Conversational Monitor System VM/SP Virtual Machine/System Product VMB Voice Mail Box VMCF Virtual Machine Communications Facility VMD Virtual Manufacturing Device VMD Voice Messaging Device VME Versa Modular Europa VME Versabus Module Europe VME Virtual Machine Environment VMM Virtual Memory Manager VMOS Vertical Metal Oxide Semiconductor VMR Vertical Market Reseller VMR Volt-Meter Reverse VMRS Voice Message Relay System VMS Vertical Motion Simulator VMS Virtual Memory System VMS Virtual Memory operating System VMS Voice Mail System VMS Voice Management System VMS Voice Message System VMT Virtual Memory Technique VMTP Versatile Message Transaction Protocol VMTP Virtual Message Transaction Protocol VNA Virtual Network Architecture VNET Virtual NETwork VNF Virtual Network Feature VNL Via Net Loss VNLF Via Net Loss Factor VNLP Via Net Loss Plan VOD Voice Over Data VODAS Voice Over Data Access Station VOIS Voice-Operated Information System VOL Volume VOLM Volume VOM Volt Ohm Meter VOR VHF Omnidirectional Range VORT Very Ordinary Rendering Toolkit VOS Verbal Operating System VOX Voice Operated device VP View Processor VP Virtual President VPA VAX Performance Advisor VPC Virtual Processor Complex VPI Virtual Path Identifier VPI&SU Virginia Polytechnic Institute and State University VPL Visual Programming Language VPN Virtual Private Network VPS Voice Processing System VR Variety Reduction VR Virtual Reality VR Virtual Reality VR Voltage Regulator VRAM Video Random Access Memory VRC Vertical Redundancy Character VRC Virtual Redundancy Check VRM Virtual Resource Manager VRM Voice Recognition Module VROOMM Virtual Real-time Object Oriented Memory Manager VRS Voice Response System VRU Voice Response Unit VS VAXStation VS Virtual Storage VSAM Virtual Sequential Access Method VSAM Virtual Storage Access Method VSAT Very Small Aperture Terminal VSB Vestigial Sideband VSE Virtual Storage Extended VSF Vertical Scanning Frequency VSLI Very Large Scale Integration VSM Virtual Storage Management VSOS Virtual Storage Operating System VSP Vector/Scalar Processor VSR Voice Storage and Retrieval VSS Voice Storage System VSSP Voice Switch Signaling Point VSX Verification Suite for X/open VSYNC Vertical Sync VT Vertical Tab VT Vertical Tabulator VT Video Terminal VT Virtual Terminal VTAM Virtual Telecom Access Method VTAM Virtual Telecommunications Access Method VTAM Virtual Terminal Access Method VTI Virtual Terminal Interface VTOC Volume Table of Contents VTP Virtual Terminal Protocol VTR VideoTape Recorder VTS Video Teleconferencing System VTS Virtual Terminal Service VTX Videotex VU Volume Unit VUE Visual User Environment VUI Video User Interface VUIT Visual User Interface Tool VUP VAX Unit of Performance VWS VAX Workstation Software VXI VMEbus Extension for Instrumentation W watt W/O Without W3 World Wide Web W4 What Works With What WABI Windows Application Binary Interface WACS Western and Central States WADS Wide Area Data Service WAIS Wide Area Information Server WAITS West coast Alternative to ITS WAITS Wide-Area Informtion Transfer System WAN Wide Area Network WAP Work Assignment Procedure WAR Weekly Activity Report WARC World Administrative Conference WATFOR WATerloo FORtran WATS Wide Area Telecommunications Service WATS Wide Area Telephone Service WATSUP WATfor Student Utility Program WAV Windows Audio Video WBS Work Breakdown Structure WC WildCat WC Wire Center WC Word Count WCI Write Controller Interface WCL Widget Creation Library WCPC Wire Center Planning Center WCS Writable Control Store WCU Water Cooling Unit WD Western Digital WD Working Document WD Working Draft WDC Work Distribution Chart WDCS Wideband Digital Cross-Connect System WDFHP recursive high pass filter + decimation filter WDFLP recursive low pass filter + decimation filter WDM Wavelength Division MultiPlexing WDM Wavelength Division Multiplex WDT Watch Dog Timer WECo Western Electric Company WELL Whole Earth 'Lectronic Link WES Western Electronics Switching WF Work Factor method WFMTUG World Federation of MAP/TOP User Groups WFW Windows For Workgroups WG Working Group WGS WorkGroup System WHCA White House Communications Agency WICS Worldwide Intelligence Communications System WIMP Windows, Icons, Menus, Pointers WINGS Wide-bandwidth Information Network Gigabit Services WINS Warehouse Information Network Standards WINS Wollongong Integrated Networking Solutions WIP Work-In-Process WIP Workcenter Information Package WIPO World Intellectual Property Organization WIS WWMCCS Information System WISC Wisconsin Integrally Synchronized Computer WITS Washington Interagency Telecommunications System WKS Well Known Services WM Work Manager WMF Windows MetaFile WMF Workload Monitoring Function WMSCR Weather Message Switching Center Replacement WNIC Wide-Area Network Interface Co-Processor WNIM Wide-Area Network Interface Module WO Write Only WOM Write Only Memory WOMBAT Waste Of Money, Brains, And Time WOPR War Operations Planned Response WORM Write Once, Read Many WOSA Windows Open Services Architecture WP Word Processing WP Word Processor WP WordPerfect WP Working Paper WP Working Paper WP Write Protected WPD Windows Printer Description WPG WordPerfect Graphic WPHD Write-Protect Hard Disk WPI Worcester Polytechnic Institute WPM Words Per Minute WPS Windows Printing System WPS Word Processing Software WPS WorkPlace Shell WS WordStar WS Work Sampling WS Work Station WS Workstation WSD Work Station Division WSF WorkStation Function WSI Wafer Scale Integration WSMR White Sands Missile Range WSN Wirth Syntax Notation WSP Work Simplification Program WT Write Through WTM World Target Mosaic WUGNET Windows Users Group NETwork WW Worldwide WWFO World Wide Field Operations WWMCCS World-Wide Military Command and Control System WWOPS World-Wide Operations WWW World Wide Web WYSBYGI What You See Before You Get It WYSIWIS What You See Is What I See WYSIWYG What You See Is What You Get XA Extended Attribute XA eXtended Architecture XAD Transmit Adress XAPIA X.400 Application Program Interface Association XB X-Bar XBT X-Bar Tandem XCF eXperimental Computing Facility XCHG Exchange XCMD External Command XCOST Transfer Cost XDMCP X Display Manager Control Protocol XDR eXternal Data Representation XFCN External Function XFE X-Bar Front End XFE X-Front End XFER transFER XFIFO Transmit FIFO XFMC Cross Functional Management Committee XGA Extended Graphics Array XGP Xerox Graphics Printer XID Exchange Identifier XID eXchange IDentification XIE X Imaging Extension XIM X Input Method XINU XINU Is Not UNIX XIOS Extended Input/Output System XIP eXecute In Place XL eXtra Large XLAT Translate XMI eXtended Memory Interconnect XMIT Transmit XMM Extended Memory Manager XMM X-ray Multi Mirror XMS Extended Memory Specification XMS Extended Multiprocessor System XMS eXtended Multiprocessor operating System XMTR transMiTteR XNA Xerox Network Architecture XNS Xerox Network Services XNS Xerox Network Standard XNS Xerox Network System XNS Xerox Network Systems XNS Xerox Networking Systems XO eXactly Once XOFF Transmission Off XON Transmission On XOR eXclusive OR XPG X/Open Portability Guide XPL Cross Reference Protocol Listing XPORT transPORT XPSDU eXpediated Presentation Service Data Unit XRM X Resource Manager XSMD Extended Storage Module Drive XSSDU eXpediated Session Service Device XSV Transfer Cost System Value XT X.11 Toolkit XTAL Crystal XTC Extended Test Controller XTC eXternal Transmit Clock XUI X-windows User Interface XUV eXtreme UltraViolet XVIEW X window system-based Visual/Integrated Environment for Workstations XVT eXtensible Virtual Toolkit XWSDS X Window System Display Station YA Yet Another YABA Yet Another Bloody Acronym YACC Yet Another Compiler Compiler YAM Yet Another Modem YAUN Yet Another UNIX Nerd YMU Y-NET Management Unit YY Year Z-CAV Zoned Constant Angular Velocity ZBR Zone Bit Recording ZCS Zero Code Suppression ZD Zero Defect ZDS Zenith Data Systems ZGM ZenoGraphics Metafile ZI Zonal Index ZIF Zero Insertion Force ZIP Zig-zag Inline Package ZIP Zig-zag Inline Pin ZIP Zone Improvement Plan ZIP Zone Information Protocol ZIT Zone Information Table ZNT ZiffNet ZSL Zero Slot LAN ZWEI ZWEI Was EINE Initially