007 James Bond 007 1TR6 (Ger) FTZ regulation (close to CCITT Q.930/931) 2044 Superhero 2044 2B1Q 2 binary data, 1 quarternary redundance 2D 2-Dimensional 3ACC 3A Central Control 3D 3-Dimensional 3M Minnesota Mining and Manufacturing Company Ltd 3PTY Three Party Service (I.254 B) 4B3T 4 binary data, 3 ternary redundance (MMS43) 4GL Fourth Generation Language 4H Head, Heart, Hands, Health 5B6B 5 binary data, 6 binary redundance (code for OFT lines) 5XB COER 5 X-Bar Central Office Equipment Reports system A Aftermath AA Affirmative Action committee AA Alcoholics Anonymous AA Antiaircraft Artillery AA Associate in Accounting AA Auto Answer AA Automobile Association [England] AAA American Automobile Association AAAAAA Association for the Abolition of Abused Abbreviations and Assinine Acronyms AAAL American Academy of Arts and Letters AAAS American Association for the Advancement of Science AAII American Association of Individual Investors AAMSI American Association for Medical Systems Informatics AAP Affirmative Action Program AAP Applications Access Point [DEC] AARC Anglo-American Cataloguing Rules AARP American Association of Retired Persons AASP ASCII Asynchronous Support Package AAT Average Access Time AAX Automated Attendant eXchange AB ABle seaman a/b two wire phone connection (T&R) ABA American Bar Association ABA American Basketball Association ABA American Booksellers Association ABATS Automatic Bit Access Test System ABBR ABBReviation ABC American Broadcasting Company ABEND Abnormal End ABEND ABnormal END (of program execution) ABHC Average Busy Hour Calls ABI Application Binary Interface ABIOS Advanced BIOS ABM Asynchronous Balanced Mode ( -> SABME) ABME ABM extended ABRC Advisory Board for the Research Councils ABS Absolute ABS Acrylonitrile Butadiene Styrene (the plastic that computer cases, etc, are made of) ABS Alternative Billing Service ABSBH Average Busy Season Busy Hour ABT Abort AC Alternating Current AC Alternating Current (ac, see also DC) AC Ante Christum (before Christ) AC Ante Cibum (before meals) AC Automatic Computer ACA Asynchronous Communication Adapter ACAA Agricultural Conservation and Adjustment Administration ACAL Association of Computer Assisted Learning ACARD Advisory Council for Applied Research & Development ACAWS Advisory, Caution, And Warning System ACB Annoyance Call Bureau ACBL American Contract Bridge League ACC Accumulator ACC Argonne Code Center ACC Audio Communications Controller ACCO ACCOunting module [GEC] ACCS Army Command and Control System ACCS Automated Calling Card Service ACD Atlas Computing Division [RAL] ACD Automated Call Distribution ACD Automatic Call Distributing system ACD Automatic Call Distribution ACD Automatic Call Distributor [telephony] ACDA Automatic Call Disposition Analyzer ACE Advanced Computing Environment [SCO] ACE Advanced Computing Environments [Corporate name] ACE Adverse Channel Enhancements [Microcom] ACE Automatic Calibration and Equalization ACE Automatic Calling Equipment ACF Access Control Field ACF Advanced Communications Function ACF Advanced Communications Functions ACF2 Access Control Facility - 2 ACF-2 Access Control Facility - 2 ACFA Advanced CMOS Frame Aligner PEB2030 ACH Attempt per Circuit per Hour ACHEFT Automated ClearingHouse Electronic Funds Transfer ACI Answer Controller Interface (IOM2 Monitor Command) ACIA Asynchronous Communications Interface Adapter ACIAS Automated Calibration Internal Analysis System ACIS American Committee for Interoperable Systems ACK Acknowledge ACK Acknowledgment ACL Advanced Cmos Logic ACM Address Complete Message (SS7: in ISUP) ACM Association for Computing Machinery ACM Association for Computing Machinery [USA] ACMS Application Control Management System ACO Acronym Control Officer ACOF Attendant Control Of Facilities ACP ACtion Point ACP Ancillary Control Program ACP Auxillary Control Process ACROSS Automated Cargo Release and Operations Service System ACS Access ACS Access Control Set ACS Access Control System ACS Advanced Communications System ACS Asynchronous Communication Server ACSE Association Control Service Element ACSE Association Control Service Entity (ISO/CCITT layer 7) ACSL Advanced Control & Simulation Language [ICL] ACSNET Acedemic Computing Services NETwork ACSU Advanced t-1 Channel Service Unit ACTS Advanced Communications Technology Satellite ACTS Automated Coin Toll Service ACTS Automatic Coin Telephone Service [telephony] ACU Alarm Control Unit ACU Automatic Call Unit [telephony] ACU Automatic Calling Unit ACU Automatic Calling Unit ACW Alternating Continuous Waves AD After Date AD Anno Domini (in the year of our Lord) AD Application Development A/D Analog to Digital A/D Analog to Digital converter (see ADC) Ad Astra To the stars [Latin; Space] ADA Automatic Data Acquisitions ADA not an acronym, but the name of a new Pascal-like language ADA (Programming Language named after Agusta Ada Lovelace) ADAP Alzheimer's disease-associated protein ADAP American Discount Auto Parts [Corporate name] ADB A DeBugger ADB Apple Desktop Bus ADC Adaptive Data Compression (protocol) [Hayes] ADC Add with Carry ADC American Digital Cellular ADC Analog to Digital Converter ADC Analog to Digital Convertor ADC Analogue to Digital Converter ADCCP Advanced Data Communication Control Procedure ADCCP Advanced Data Communication Control Procedures ADCI Automatic Display Call Indicator AD&D Advanced Dungeons & Dragons ADE Automated Design Engineering ADF Automatic Direction Finder ADF Automatic Document Feed .ADF Adapter Description File (file name extension) [IBM] ADL Address Data Latch ADLAT Adaptive Lattice Filter ADLC Advanced Data Link Controller ADLE Active iDLE ? [GEC] ADM ADMiral ADMA Advanced DMA Controller SAB82258 ADMD Administrative Management Domain [X.400] ADN Abbreviated Dialing Number .ADN Add In Utility (file name extension) [Lotus 1-2-3] [LDC] ADP Adenosine Di-Phosphate ADP Administrative Data Processing ADP Advanced Data Processing ADP Automatic Data Processing ADPCM Adaptive Differential Pulse Code Modulation ADPCM Adaptive PCM ADPCM Pulse Code Modulation with Adaptive Quantization ADR Address ADS Advanced Digital System ADS Application Development System ADS Application Development System ADS Audio Distribution System ADS Automatic Distribution System ADS Automatic Voice System ADS Auxilary Data System ADSC Address Status Changed ADSR Attack Decay Sustain Release ADSR Attack, Decay, Sustain, Release ADT Abstract Data Type ADT Application Data Types ADT Atlantic Daylight Time ADU Automatic Dialing Unit AE Above or Equal AE Application Execution AEA American Electronics Association AEA Atomic Energy Authority AEB Analog Expansion Bus [Dialogic] AEC Atomic Energy Commission AEF American Expeditionary Force (see BEF) AEGIS Advanced Electronic Guidance and Instrumentation System AERE Atomic Energy Research Establishment [UK] AERM Alignment Error Rate Monitor AF Adventures in Fantasy AF Air Force AF Audio Frequency AF Auxilary carry Flag AFACTS Automatic FACilities Test System AFADS Automatic Force Adjustment Data System AFAIK as far as I know AFATDS Advanced Field Artillery Tactical Data System AFB Air Force Base AFC American Football Conference 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 AFGE American Federation of Government Employees AFI Authority and Format Identifier (ISO 7498) AFII Association for Font Information Interchange AFIPS American Federation of Information Processing Societies AFL American Federation of Labor AFL American Football League AFLCIO American Federation of Labor and Congress of Industrial Organizations .AFM Adobe Font Metrics (file name extension) [Adobe Systems] AFNOR Association Francaise de NORmalization AFP Appletalk Filing Protocol AFS Andrew File System AFSC Air Force Systems Command AFSCME American Federation of State, County and Municipal Employees AFSK Automatic Frequency Shift Keying AFTRA American Federation of Television and Radio Artists AG Adjutant General AG Arcade Game AG Attorney General AGC Automatic Gain Control AGCT Army General Classification Test AGND Analog Ground AGR Advanced Gas-cooled Reactor AH Avalon Hill (major war game manufacturer) AH Avalon Hill (major wargame manufacturer) AHL American Hockey League AHQ Air HeadQuarters AHQ Air HeadQuaters AI Activate Indication (C/I channel code) AI Analog Input AI Artificial Insemination AI Artificial Intelligence AI Artificial Intelligence AIA Applications Integration Architecture [DEC] AIAA American Institute of Aeronautics and Astronautics AIC Automatic Intercept Center AICC Automatic Intercept Communications Controller AID Agency for International Development AIDA An Interactive Debugging Aid [GEC] AIDDE Ames' Interactive Dynamic Display Editor AIDS Acquired ImmunoDeficiency Syndrom AIIM Association for Information and Image Management AIOD Automatic Identificated Outward Dialing AIOD Automatic Identification Outward Dialing AIS Alarm Indication Signal AIS Automatic Intercept System AISB Association of Imaging Service Bureaus AISP Association of Information Systems Professionals AIT Advanced Information Technology AIU AI Upstream AIX Advanced Interactive Executive [IBM] AIX Advanced Interactive eXecutive (IBM's name for UNIX) AIX Advanced Interactive eXecutive (unix) AK Alaska AKA Also Known As AL Alabama AL American League (baseball) ALA American Library Association ALA Automobile Legal Association ALBM Air-to-Land Ballistic Missile ALBO Automatic Line BuildOut ALC Arithmetic and Logic Circuits ALC Automatic Level Control ALC Automatic Load Control ALE Address Latch Enable ALE Adress Latch Enable ALFE Analog Line Front End ALGOL ALGOrhythmic computer Language ALGOL ALGOrithmic Language ALGOL Algorithmic Language (see IAL) ALI Automatic Location Indentification ALIT Automatic Line Insulation Testing [telephony] ALPAQ Active Link Pack Area Queue[MVS] ALR Advanced Logic Research, Inc. ALRU Automatic Line Record Update ALS Advanced Launch System [Space] ALS Automated List Service ALT Alternate (mode) ALU Arithmetic Logic Unit ALU Arithmetic Logic Unit AM Administrative Module AM Amplitude Modulation AM Ante Meridiem (before noon) A&M Agricultural and Mechanical AMA American Medical Association AMA Automatic Message Accounting [telephony] AMACS AMA Collection System AMANDDA Automated Messaging and Directory Assistance AMARC AMA Recording Center AMARC Automatic Message Accounting Recording Center AMASE AMA Standard Entry AMAT AMA Transmitter AMATPS AMA TeleProcessing System AMBA Association of Master of Business Administration AMC Add-on Module Connector (-> SIPB) AMC Albany Medical College AMD Active Matrix Display AMD Advanced Micro Devices [Corporate name] AMD Advanced Micro Devices, Inc. AMEX AMerican EXpress [Corporate name] AMI Alternate Mark Inversion Code AMI Alternate Mark Inversion (see also NRZ, NRZI, B8ZS) AMMA Advanced Memory Management Architecture [Everex Systems] AMORC Ancient Mystic Order Rosae Crucis AMP Adenosine MonoPhosphate AMPAS Academy of Motion Picture Arts and Sciences AMPAS Acedemy of Motion Picture Arts and Sciences AMPS Advanced Mobile Phone Service (standard analog cellular telephone technology used in North America and elsewhere) AMRAAM Advanced Medium Range Air-To-Air Missile AMROC American Rocket Company [Space] AMSAT radio AMateur SATellite Corporation AMU Atomic Mass Unit AMVET AMerican VETeran AN Associated Number ANA American Nurses Association ANA Automatic Number Announcement ANAC Automatic Number Announcemnt Circuit [telephony] ANC All Number Calling [telephony] ANC Army Nurse Corps ANCOVA Analysis of Covariance ANDF Architecture-Neural Distribution Format ANF Automatic Number Forwarding [telephony] ANG Air National Guard ANI Automatic Number Identification ANI Automatic Number Identification (see also: CLID) [telephony] ANIF Automatic Number Identification Failure ANL Argonne National Laboratory ANM Answer Message (SS7: in ISUP) ANOVA ANalysis Of VAriance ANOVA Analysis Of Variance ANPA American Newspaper Publishers Association ANS Answer Message ANSI American National Standards Institute ANSI American National Standards Institute ANZUS Australia, New Zealand, United States AO Account Of AO Analog Output AOA Abort Once Around [NASA, Shuttle] AOC Advice of Charge (I.256 B) AOE Application Operating Environment [AT&T] AOF Advanced Operating Facilities [CTL Modular One] AOL Absent Over Leave (see AWOL) AOS Academic Operating System AOS Add Or Subtract AOS Alternate Operator Service [telephony] AOSS Auxilliary Operator Service System AP Additional Premium AP Adjunct Processor AP All Points AP Application (OSI Layer 7) AP Application Processor AP Associated Press [Corporate name] AP Attached Processor A/P Accounts Payable A/P Accounts Payable APA Adaptive Packet Assembly APA All Points Addressable APA All Points Addressable APA American Psychological Association APA Arithmetic Processing Accelerator APAL Array Processor Assembly Language [ICL] APAR Authorized Program Analysis Report [IBM] APAREN Address Parity Enable [IBM] APB All Points Bulletin APC AMARC Protocol Converter APCUG Association of PC User Groups APD Avalanche Photo Diode APDA Apple Programmers and Developers Association API Application Interface API Application Program Interface API Application Programming Interface API Application Programming Interface APICS American Production and Inventory Control Society ApJ Astrophysical Journal APL A Programming Language APL A Programming Language (Mathematics) APM Advanced Power Management [IBM OS2] APO Alpha Pi (?) Omega, service fraternity APO Army Post Office APP Applications Portability Profile .APP Application (file name extension) [R:Base] APPC Advanced Peer-to-Peer Communications APPC Advanced Program to Program Communication (IBM) APPC Advanced Program-to-Program Communication (protocol) [IBM] APPI Advanced Peer-to-Peer Internetworking APPN Advanced Peer-to-Peer Networking [IBM] APR Annual Percentage Rate (as in loan interest) APS Asynchronous Protocol Specification APS Automatic Protection Switch APSE ADA Programming Support Environment APSE Ada Programming Support Environment APT Address Pass Through APT Automatically Programmed Tools AQ Accumulator-Quotient register AR Activation Request (C/I channel code) AR Address Register AR Alarm Report AR Arkansas A/R Accounts Receivable A/R Accounts Receivable ARC Agricultural Research Council ARC AIDS-related complex ARC American Red Cross ARC Applied Research of Cambridge ARC Audio Response Controller .ARC Archive (file name extension) ARCA Advanced RISC Computing Architecture ARCNET Attached Resource Computer local area NETwork ARCOFI Audio Ringing Codec Filter PSB2160 ARCOS ARCOFI Coefficient Support Program ARCOTI SIPB Telephone Module ARD AR Downstream ARGS Advanced Raster Graphics System [Sigma] ARIS Audichron Recorded Information System ARL Activation Request Local loop (C/I channel code) ARL Adjusted Ring Length ARLL Advanced Run Length Limited ARM Activation Request Maintenance (C/I channel code) ARM Asynchronous Response Mode ARM Asynchronous Response Mode ARMA Association of Records Managers and Administrators ARN Activation Request ARO After Receipt of Order ARP Address Resolution Protocol ARP Address Resolution Protocol [Novell] ARPA Advanced Research Projects Agency ARPA Advanced Research Projects Agency (of the USA DoD, see DARPA) ARPANET ARPA NETwork [USA] ARPL Adjust Requested Privilege Level ARQ Automatic Repeat Request ARQ Automatic Repeat Request ARRL Amateur Radio Relay League ARS Alternate Route Selection ARSB Automated Repair Service Bureau ARTIC A Real-Time Interface Copressor [IBM] ARU Activation Request Upstream ARU Audio Response Unit ARU Audio Response Unit ARV American Revised Version AS Anglo-Saxon AS3AP ANSI SQL Standard Scalable and Portable ASA Acetyl Salicylic Acid ASA Advertising Standards Association ASA American Standards Association ASAP As Soon As Possible ASAP As Soon As Possible ASAP Automatic Switching And Processing ASAS Atkins Stress Analysis System ASC Accredited Standards Committee .ASC ASCII text (file name extension) ASCAP American Society of Composers, Authors, and Publishers ASCC Automatic Sequence-Controlled Calculator ASCC2 Advanced Serial Communication Controller SAB825?? ASCII American National Standard Code for Information Interchange ASCII American Standard Code for Info'n Interchange [character code] ASCII American Standard Code for Information Interchange ASCII American Standard Code for Information Interchange ASCOP Editing and statistical analysis package ASDIC Anti-Submarine Detection Investigation Committee (British for sonar) ASDSP Application-Specific Digital Signal Processor ASE Application Service Element ASG Automated Sciences Group ASHRAE American Society of Heating, Refrigerating and Air-conditioning Engineers, inc. ASIC Application Specific Integrated Circuit ASIC Application-Specific Integrated Circuit ASIS American Society for Information Science ASIT Advanced Security and Identification Technology ASL Adaptive Speed Levelling ASM Analog Subscriber Module ASM Auxilary Storage Manager .ASM Assembler Source Language (file name extension) ASM2 Auxilary Storage Manager 2 ASM-2 Auxilary Storage Manager 2 ASME American Society of Mechanical Engineers ASN Abstract Syntax Notation One (ISO/CCITT ASN.1) ASOC Administrative Service Oversight Center ASP Aggregated Switch Procurement ASP ARCOFI Signal Processor ASP Association of Shareware Professionals ASP ASynchronous Protocol ASPEN Automatic System for Performance Evaluation of the Network ASPI Advanced SCSI Programming Interface [Adaptec] ASPS Advanced Signal Processing System ASR Automatic Send-Receive ASR Automatic Send/Receive ASR Automatic Speech Recognition ASRB Astronomy Space & Radio Board [SERC] ASSR Autonomous Soviet Socialist Republic AST AST Research, Inc. (initials of founders: Albert Wong, Safi Qureshey, Thomas Yuen) AST Atlantic Standard Time ASV American Standard Version ASYNC Asynchronous AT Access Tandem AT Advanced Technology AT Atlantic Time AT Attention ATA AT Bus Attachment ATA Automatic Trouble Analysis ATACC Advanced Tactical Air Command Central ATB Advanced Technology Bomber (stealth bomber) ATB All Trunks Busy ATC Air Traffic Control ATC Automatic Transmission Control ATD Asynchronous TDM ATDP Attention Dial Pulse ATDT Attention Dial Tone ATE Automated Test Equipment ATE Automatic 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 Transmitter Identification System ATLAS Pioneering computer designed at Manchester Univ'y in the 1960s ATM Adobe Typeface Manager ATM Analog Trunk Module ATM Asynchronous Transfer Mode ATM Asynchronous Transfer Mode ATM Automated Teller Machine ATM Automatic Teller Machine ATMS Automated Trunk Measurement System ATN Augmented Transition Network ATO Abort To Orbit [NASA, Shuttle] ATOMS AT&t Optimized Materials Simulator ATP Adenosine TriPhosphate ATP All Tests Pass ATPCO Airline Tariff Publishing COmpany ATR Alternate Trunk Routing ATR Automatic Terminal Recognition ATRS Automated Trouble Reporting System ATS Administrative Terminal System ATS Apple Terminal Services ATT American Telephone & Telegraph (normally written AT&T when seperate) ATT Atlantic Telegraph & Telephone AT&T American Telephone and Telegraph AT&T American Telephone and Telegraph ATTC Automatic Transmission Test and Control circuit ATTCOM AT&T COMmunications ATTIS American Telephone and Telegraph Information Systems [Division of AT&T?] ATTIS AT&T Information System ATTN Attention ATTRIB Attribute (also ATR) ATV All Terrain Vehicle AU Access Unit AU Allocation Unit [SERC] AU Astronomical Unit (93,000,000 miles) [Space] AUCBE Advisory Unit for Computer Based Education AUDIT Automated Data Input Terminal AUDIX AUDio Information eXchange AUI Attached Unit Interface AUI Attachment Universal Interface AUP Access Unit Port AUP Appropriate Use Policies [Internet] AUS Allocation UnitS AUS Army of the United States AUTO Automatic AUTODIN AUTOmatic DIgital Network AUTOVON AUTOmatic VOice Netework AUTOVON AUTOmatic VOice Network AUX Auxiliary AUXF AUXillary Frame AV AudioVisual AVA Audio Visual Authoring [IBM] AVC Audio Visual Connection [IBM] AVD Alternate Voice Data AVG Average AVI Audio Visual Interleaved [Microsoft] AVLIS Atomic Vapor Laser Isotope Separation AW (Ger) termination resistor AWACS Airborne Warnings And Control Systems AWEA American Wind Energy Association AWI Awake Indication AWK al Aho, peter Weinberger, brian Kernighan (pattern scanning language) AWOL Absent WithOut Leave (also Absent Without Official Leave) (see AOL) AWRE Atomic Weapons Research Establishment [UK] AX Architecture Extended AX Automatic Transmission AXAF Advanced X-ray Astrophysics Facility [Space] AZ Arizona B Book B1302 Benson 1302, a popular drum plotter on SERCnet MUMs B42S Board 42 Simulator [GEC] B6ZS Bipolar with 6 Zero Subsitution B8ZS Binary 8 Zero Substitution (see also NRZ, NRZI, AMI) B8ZS Bipolar with 8 Zeros Substitution (T1 PRI) B911 Basic 911 BA Bachelor of Arts BA Basic Access BA British Aerospace BAA British Airports Authority BABBAGE not an acronym, but the GEC language named after Charles Babbage BABS British Airways Booking System BACH Business Alliance for Commerce in Hemp BAFO Best And Final Offer BAK Binary Adaption Kit [Microsoft] .BAK Backup (file name extension) BAKT (Ger) Basic Access Concentrator BAL Basic Assembly Language BAM Boyan Action Module BAMAF BELLCORE AMA Format BAMX (Ger) Basic Access MUX BAN Binary Addressable Network BANCS Bell Administrative Network Communications System BAPCO Bellsouth Advertising & Publishing COmpany BARRNet Bay Area Regional Research Network (SF Bay Area) BARTS Bell Atlantic Regional Timesharing BAS Basic Activity Subset (T.62, BAS of OSI session layer) .BAS Basic Language (file name extension) BASIC Beginner's All-purpose Symbolic Instruction Code BASIC Beginner's All-purpose Symbolic Instruction Code BASIC Beginners All-purpose Symbolic Instruction code BASM Built-In Assembler .BAT Batch Processing (file name extension) BB Bases on Balls BB Best of Breed BB Bunnies and Burrows BBA Bachelor of Business Administration BBB Better Business Bureau BBC British Broadcasting Corporation BBD0/1 Binary 0s or 1s detected in B and D channels BBL Barrel BBN Bolt, Beranek, and Newman, Inc. [Corporate name] BBP Basic Block Protocol BBS Bulletin Board System BC Battlecars BC Before Christ BC British Columbia BC/BS Blue Cross/Blue Shield BCC Block Check Character BCC Blocked Call Cleared BCCP Bearer CCP BCD Bad Conduct Discharge BCD Binary Coded Decimal BCD Binary Coded Decimal [character code] BCD Blocked Call Delayed BCDIC Binary Coded Decimal Interchange Code BCE Before the Common Era (substitute for BC) BCL Batch Command Language BCNU Be Seeing You [Net Jargon] BCP Bulk Copy Program BCP Byte Control Protocol BCP Byte Controlled Protocals BCP Byte Controlled Protocols BCPL Basic Combined Programming Language BCPL Basic Computer Programming Language BCPL Bootstrap Combined Programming Language BCR Byte Count Register BCRG Bubble Chamber Research Group [RAL] BCS Bachelor of Commercial Science BCS Batch Change Supplement BCS Binary Compatibility Standard BCS Boston Computer Society BCS British Computer Society BD Bachelor of Divinity BD Bank Draft BD Bills Discounted BDAM Basic Direct Access Method [IBM] BD&D Basic Dungeons & Dragons BDF Binary Distribution Format BDOS Basic Disk Operating System BDS Basic Data Service BDS Building Design Scheme [ARC] BDT Billing Data Transmitter BE Below or Equal BE Bill of Exchange BEF Band Elimination Filter BEF British Expeditionary Force (see AEF) BEL Bell BELCORE BELL COmmunications REsearch BELLCORE Bell Communications Research BEM Bug Eyed Monster BENELUX BElgium, NEtherlands, and LUXembourg BENSON not an acronym, makers of plotters etc. BER Bit Error Rate BERA British Educational Research Association BERDYNE a program for analysis of linear dynamic behaviour of structures BERSAFE a program suite for finite element analysis BERT Bit Error Rate Test BERT Bit Error Rate Test/Tester BEST Borland Enhanced Support and Training BETRS Basic Exchange Telecommunications Radio Service BF Bad Flag BF Brought Forward B/F Background/Foreground BFA Bachelor of Fine Arts BFD Big F***ing Deal BFHD Big Fat Hairy Deal BGE Branch if Greater or Equal .BGI Borland Graphic Interface (file name extension) BGT Branch if Greater Than BH Boot Hill BHC Busy Hour Call(s) BHI Branch if Higher BHIS Branch if Higher or Same BHP Brake HorsePower BI Binary Input BIB Backward Indicator Bit (SS7) .BIB Bibliography (file name extension) BICS Building Industry Consulting Services [telephony] BICU Bus Interface Control Unit BID Bis In Die (twice a day) BIFIFO Bidirectional FIFO BIM Beginning of Information Marker .BIN Binary (file name extension) BINAC Binary Automatic Computer BIOC Break Into Other Computers BIOS Basic Input Output System BIOS Basic Input/Output System BIR Bit Receiver BIR Bus Interface Register BIS Business Information System BIS Business Information System BISDN Broadband ISDN [telephony] BISP Business Information System Program BISYNC Binary Synchronous Communications BiSync Binary Synchronous Communications (BSC is preferred) [IBM] BiSYNC (See BSYNC) BIT BInary digiT BIT Binary digit Bit BInary digiT BIT Bit Transmitter BITNET Because It's Time Network BITNET Because It's Time Network BITNET Because-It's-Time NETwork BITR Bit Transceiver BIU Bus Interface Unit BIX Byte Information Exchange (BBS) .BK! Backup (file name extension) [WordPerfect] BKSP Backspace BL Backlit BL British Leyland BLA Blocking Acknowledgement (SS7: in ISUP) BLAST BLocked ASynchronous Transmission BLAST Blocked Asynchronous Transmission (protocol) [Communications Research Group] .BLD BASIC Bload Graphics (file name extension) BLDL BuiLD a List[MVS] BLDR process loader service module [GEC] BL/DS Busy Line/Don't Answer BLE Branch if Less or Equal BLERT BLock Error Rate Test BLF Busy Lamp Field [telephony] BLF Busy Line Field BLK Block BLMC Buried Logic Macrocell BLO Blocking (SS7: in ISUP) BLOB Binary Large Object BLOS Branch if Lower Or Same BLS Business Listing Service BLT Bacon Lettuce & Tomato BLT Bacon, Lettuce, and Tomato (sandwich) BLT Becon, Lettuce and Tomato BLT BLock Transfer [raster graphics operation] BLV Busy Line Verification BM Basal Metabolism BM Bowel Movement BMA Bank Marketing Association BMA British Medical Association BMC Basic Multiplexer Channel[GEC] BMDP BioMeDical computer Programs for data analysis [UCLA] BMEWS Ballistic Missile Early Warning BMI Branch if Minus BMIC BusMaster Interface Controller [Intel] BMO Ballistic Missile Office BMOC Big Man On Campus BMP Batch Message Processing Program .BMP Bitmap Graphics (file name extension) [Windows] BMR Basal Metabolism Rate BMU Basic Measurement Unit (DIP) BNC Bayonet Neill Concelman (connector) [electronics] (see also TNC) BNE Branch if Not Equal BNF Bachus-Naur Form BNF Backus-Naur Form BNF British Nuclear Fuels BNOC British National Oil Corporation BNS Billed Number Screening BNW BensoN Writer module [on some SERCnet GEC computers] BO Binary Output BO Body Odor BO Branch Office BO Buyer's Option BOC Bell Operating Companies BOC Bell Operating Company BOC British Oxygen Company BOD Board Of Directors BOF Birds Of a Feather BOM Beginning Of Message BOM Bill Of Materials BOMP Bill Of Materials Processor BOOTP Bootstrap Protocol [Internet] BOOTP Bootstrap Protocol [Internet] BOP Bit Oriented Protocol BOP Byte Oriented Protocol BOQ Bachelor Officers' Quarters BOQ Bachelor Oficers' Quarters BOR Basic Output Report BORPQU Borland Pro Quattro BORQU Borland Quattro BORSCHT Battery, Overvoltage, Ringing, Supervision, Coding, Hybrid Test BORSCHT Battery, Overvoltage, Ringing, Supervision, Coding, Hybrid, Testing BOS Basic Operating System BOS Bit Oriented Signaling BOS Business Office Supervisor BOSIX Biin Open System Interface eXtension BOSS Billing and Order Support System BOT Beginning Of Table BOT Beginning Of Tape BOT Beginning of Tape BOT Board of Trade BP Base Pointer BP Blood Pressure BP British Petroleum BP British Pharmacopoeia BPAM Basic Partitioned Access Method [IBM] BPB BIOS Parameter Block BPI Bits Per Inch BPI Bits Per Inch BPI Bytes Per Inch BPL Branch if Plus BPOC Bell Point Of Contact BPOE Benevolent and Protective Order of Elks BPS Bits Per Second BPS Bits Per Second BPS British Psychological Society BPS Bytes Per Second BPSK Binary PSK BPSS Basic Packet-Switching Service BR Bad Register BR Bills Receivable BR Bit Robbing (CAS-BR) BR British Rail BRAT Business Residence Account Tracking system BRCS Business Residence Custom Service BRG Baud Rate Generator BRI Basic Rate Interface BRI Basic Rate Interface (ISDN) [telephony] BRI Brain Response Interface BRIEF Basic Reconfigurable Interactive Editing Facility BRL army Ballistic Research Laboratory BRM Basic Remote Module BRS Bibliographic Retrieval Service BRS Bibliographic Retrival Service BS Bachelor of Science BS Backspace BS Banded Signaling BS Batch Service module [GEC] BS Bill of Sale BSA Basic Serving Arrangements BSA Birmingham Small Arms BSA Boy Scouts of America BSAM Basic Sequential Access Method BSAM Basic Sequential Access Method [IBM] BSBH Busy Season Busy Hour BSc Bachelor of SCience BSC Binary Synchronous Communication BSC Binary Synchronous Communications (also sometimes BiSync) [IBM] BSC British Steel Corporation BSC Business Service Center .BSC Boyan Script (file name extension) [Boyan Communications] BSCM BiSynchronous Communications Module BSCS Bachelor of Science (Degree) in Computer Science BSD Berkeley Software Distribution BSD Berkely Standard Distribution BSE Basic Service Elements BSF Bell Shock Force BSF Bit Scan Forward BSI British Standards Institute BSI British Standards Institute BSI British Standards Institution BSN Bachelor of Science in Nursing BSN Backward Sequence Number (SS7) BSOC Bell Systems Operating Company BSP Bell System Practice BSR Bit Scan Reverse BSRFS Bell System Reference Frequency Standard BSS Block Started by Symbol BST Basic Services Terminal BST British Summer Time BSTJ Bell System Technical Journal BSV BASIC Bsave Graphics (file name extension) BSY Busy BSYNC Binary Synchronous Communications (protocol) BT Bit Test BT British Telecom(unications) BT Bus Terminator BTAM Basic Telecommunications Access Mathod BTAM Basic Telecommunications Access Message BTAM Basic Telecommunications Access Method [IBM] BTAM Basic Telecommunications Access Method [IBM] BTB Branch Target Buffer BTC Bit Test and Complement BTG British Technology Group BThU British Thermal Unit (BTU is preferred) BTHU BThU, British Thermal Unit BTL Bell Telephone Laboratories BTM Batch and Timesharing Monitor [Xerox Sigma] BTN Billing Telephone Number BTO Bachman Turner Overdrive BTP Batch Transfer Program BTR Bit Test and Reset BTS Bit Test and Set BTU Board of Trade Unit BTU British Thermal Unit BTW By The Way [net jargon] BU Bushido BUF Buffer BV Blessed Virgin BVA Billing Validation Application BVC Billing Validation Center BVS Basic Voice Service BWI Baltimore-Washington International (airport) BWI Baltimore-Washington Internationmal (airport) BWI British West Indies BWM Block-Write Mode BWM Broadcast Warning Message BWT Broadcast Warning TWX BWTS BandWidth Test Set BX Base eXchange (see also PX) BX Base eXchange (see PX) BYTE basic unit of data, character BYTE Binary Element String BYTE name of an American computing magazine C C Programming Language C Computer Game C programming language (successor to B, which was based on BCPL) C programming language, successor to BCPL C The C programming language [Unix] .C C source code (file name extension) [C] CA CAble CA California CA Chartered Accountant CA Chief Accountant CA Chronological Age CA Collision Avoidance (as in CSMA/CA) CA Computer Automation [the Company] CAA Civil Aviation Authority CAB Civil Aeronautics Board CABS Carrier Access Billing System CAC Calling-card Authorization Center 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 Design (also CAD/CAM) CAD Computer Aided Dispatch CADC Computer Aided Design Centre [Cambridge] CADCAM Computer Aided Design Computer Aided Manufacture CAD/CAM Computer Aided Design Computer Aided Manufacture CADD Computer Aided Design and Drafting CADMAT Computer Aided Design, Manufacture and Test CADV Combined Alternate Data/Voice CAE Common Applications Environment CAE Common Applications Environment CAE Computer Aided Engineering CAE Computer Aided Engineering CAFS Content Addressable File Store [ICL] CAG Column Address Generator CAI Call Assembly Index CAI Computer Aided Instruction CAI Computer Aided Instruction CAIS Colocated Automatic Intercept System CAIS Common Apse Interface Specification CAL Calendar CAL Computer Aided Learning CAL Computer Assisted, or Aided Learning CALCOMP CALifornia COMputer Products Inc., makers of plotters etc. CALRS Centralized Automatic Loop Reporting System CALS Computer-aided Acquisition and Logistics Support CAM Common Access Method CAM Communication Access Method CAM Computer Aided Management CAM Computer Aided Manufacturing CAM Computer Aided Manufacturing (also CAD/CAM) CAM Content Addressable Memory CAM Content Adressable Memory CAM Contents Addressable Memory CAM Control Administration Module CAMA Centralized Automatic Message Accounting [telephony] CAMAC an equipment interface standard? CAMOL Computer assisted management of learning [ICL] CAMP Campaign Against Marijuana Planting CAN Cancel CAN Cancel CAN Consumer Advise Network CANC Cancel (I.451) CAP Central Arbitration Point CAP Civil Air Patrol CAP Columbia Appletalk Package CAP Common Agricultural Policy CAP Communication Application Platform CAP Computer Aided Publishing CAP Computer Analysts & Programmers [the Company] CAPD Computing To Assist Persons With Disabilities [Johns Hopkins University] CAPS Capitals (Upper Case Letters) CAPS Cassette Programming System CAR Contents of the Address part of the Register (LISP) CAR first component of a list [Lisp] CARE Committee on American Relief in Europe CAROT Centralized Automatic Reporting On Trunks CARP California Air Resources Board CAS Cannel Associated Signaling CAS Circuit Associated Signaling CAS Column Address Select CAS Communicating Applications Specification CAS Computer Aided Styling CAS Computerized Autodial System CASE Computer & Systems Equipment [the Company] CASE Computer Aided Software Engineering CASE Computer Aided Software Engineering CASL Crosstalk Application Scripting Language [DCA] CASS Computer Assisted Search Service CASSIS Classification and Search Support Information System CASSIS Classified and Search Support Information System CAT a catalogue of files [GEC] CAT Computer Aided Testing CAT Computer Aided Testing CAT Computer Aided Tomography CAT Computer Aided Transcription CAT Computer Assisted, or Aided Teaching CAT Computer-Aided Tomography CAT Concatenate CAT Craft Access Terminal .CAT Catalog (file name extension) CATIS Common Applications and Tools Integration Services CATLAS Centralized Automatic Trouble Locating and Analysis System CATS Computer Assisted Training System CATV Common Antenna TeleVision CATV Community Antenna TeleVision CATV Community Antenna Television CAV Constant Angular Velocity CAV Constant Angular Velocity CAVU Ceiling And Visability Unlimited CAVU Ceiling And Visibility Unlimited CAW Channel Address Word [IBM] CB Citizens Band radio CBA Change Back Acknowledgement (SS7: in MTP) CBA Critical Block Analyser [GEC] CBC Canadian Broadcasting Corporation CBCR Channel Byte Count Register CBD Cash Before Delivery CBD Change Back Declaration (SS7: in MTP) CBD Commerce Business Daily CBEMA Computer and Business Equipment Manufacturers' Association CBL Computer Based Learning CBL Computer Based Learning .CBL COBOL source code (file name extension) CBP Common Base Policy [SERC] CBR Chemical, Biological, Radiological warfare CBS Columbia Broadcasting System CBS CrossBar Switching CBT Computer Based Training CBW Chemical and Biological Warfare CBW Convert Byte to Word CBX Computer-Controlled Branch Exchange CBX Computerized Branch eXchange CC Carbon Copy CC Central Control CC Cluster Controller CC Common Channel (CAS-CC) CC Common Control CC Connection Confirm CC Country Code (ISO 7498) CC1 Call Control 1 (IOS) CCA Computer Content Architecture (ISO 8637/2) CCA Computer Corporation of America [Corporate name] CCBS Completion of Call to Busy Subscribers (I.253 C) CCC Canadian Committee on Cataloging CCC Canadian Committee on Cataloguing CCC Central Computing Committee [SERC] CCC Central Control Complex CCC Civil(ian) Conservation Corps CCC Command, Control, and Communications (sometimes C^3) CCC Command, Control, Communications [Military computing term] CCC Computer Control Center CCC Computing Consultative Committee [Computer Board] CCC Concourse Computer Center [MIT] CCCCM CCC CounterMeasures (sometimes C^3CM) CCCI Command, Control, Communications, and Intelligence CCD Catalogue Create and Delete [GEC] CCD Central Computing Division [RAL] CCD Charge Coupled Device (see CID) CCD Charge-Coupled Device CCD Charged-Coupled Device CCDM Central Computing Development Meeting CCFT Cold Cathode Fluorescent Tube CCH Connections per Circuit per Hour CCI Computer Carrier Interrupt CCI Computer Carrier Interupt CCI Computer Consoles, Incorporated CCIP Continuously Computed Impact Point CCIR Comite' Consultatif International des Radio Communications CCIR Consultative Committee for Radiocomunication CCIRN Coordinating Committee for Intercontinental Research Networking CCIS #7 Common Channel Interoffice Signaling (Japan, SS #7 Subset) CCIS Common Channel Interoffice Signaling [telephony] CCITT Comite' Consultatif International de Telegraphique et Telephonique CCITT Consultative Committee for International Telegraph and Telephone CCITT International Consultative Committee on Telephony and Telegraphy CCNC CCS Network Control CCNC Common Channel Network Controller CCNC Computer/Communications Network Center CCON Catalogue CONnect [GEC] CCP Call Control Part CCP Computing Coordinators Panel [SERC] CCP Console Command Processor CCR Clock Configuration Register CCR Commitment, Concurrency, and Recovery CCR Continuity Check Request (SS7: in ISUP) CCR Creedence Clearwater Revival CCR Customer-Controlled Reconfiguration CCRC Corrupt CRC (IOM2 Monitor Command) CCRM Central Computer Representatives Meeting [SERC] CCRP Continuously Computed Release Point CCS Collective Conciousness Society CCS Common Channel Signaling CCS Common Communications Support CCS Continuous Composite Servo CCS Hundred (C) Call Seconds CCS7 Common Channel Signalling (version #7) [telephony, may be AT&T specific] CCSA Common Control Switching Arrangement [telephony] CCSA Common-Control Switching Arrangement CCSC Computing & Communications Sub-Committee [SERC] CCSUM Central Computing Site Users Meeting [SERC] CCT Central Control Terminal CCTA Central Computer & Telecommunications Agency 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 CCW Channel Control Word [IBM] CD Call Deflection (I.252 E) CD Carrier Detect (properly DCD) CD Certificate of Deposit CD Change Directory CD Civil Defense CD Collision Detection (as in CSMA/CD) CD Color Display CD Compact Disk CD Compact Disk CD Computing Division [RAL] C/D Control Data CDA Call Data Accumulator CDA Coin Detection and Announcement CDA Compound Document Architecture [DEC] CDA Compound Documents Architecture CDAR Customer Dialed Account Recording CDC Centers for Disease Control CDC Control Data Corporation CDC Control Data Corporation, Inc. [Corporate name] CDCF Cumulative Discounted Cash Flow CD_CHRDY Card Channel Ready [IBM] CDDI Copper Distributed Data Interface CDE Complex Data Entry CDEV Control panel DEVice CDF Combined Distributing Frame .CDF Comma Delimited Format (file name extension) CDI Circle Digit Identification CDI Connected Line Identification (I.251 C/E) CD-I Compact Disk - Interactive CDIAC Carbon Dioxide Information Analysis Center CDL Computer Design Language CDMA Code Division Multiple Access CDO Community Dial Office CDOS Concurrent Disk Operating System CDPR Customer Dial Pulse Receiver CDR Call Detail Record CDR Call Detail Recording CDR Call Dial Rerouting CDR Collision Detect input line CDR CommanDeR CDR Contents of the Decrement part of the Register [LISP] CDR remainder of a list with its first component deleted [Lisp] CD-RDx Compact Disk - Read Only Memory Data Exchange Standard CDRL Contract Data Requirements List CD-ROM Compact Disk - Read Only Memory CD-ROM Compact Disk Read Only Memory CD-RTOS Compact Disk - Real Time Operating System CDS Craft Dispatch System CDS Current Directory Structure CDS pdsman Control Buffer CDSF Commercially Developed Space Facility CDT Call Data Transmitter CDT Central Daylight Time CDU Control Display Unit CD-V Compact Disk - Video .CDX Compound Index (file name extension) [Fox Pro] CE Cache Enable CE Chemical Engineer CE Chip Enable CE Civil Engineer CE Collision Elimination CE Collision Elimination (->CSMA/) CE Common Era (substitute for AD) CE Conducted Emission (EME) CE Convert Enable CE Corps of Engineers CE Customer Engineer CEA Council of Economic Advisors CEA County Education Authority CeBIT Centrum fuer Buero und Informations-technologie (office and information technology centre) CEC Commission of the European Communities CED Committee for Economic Development CEDAR Computers in EDucation As a Resource [Imperial College] CEF Cable Entrance Facility CEG Continuous Edge Graphics CEGB Central Electricity Generating Board CEI Comparable Efficient Interconnection CEI Comparably Efficient Interconnection CEI Conducted Electromagnetic Interference CELSS Controlled Ecological Life Support System [Space] CEN European Committee of Standards CENELEC European Committee of Standards (Electrotechnics) CENS Centre d'Etudes Nucleaires de Seclay CENTO CENtral Treaty Organization CEO Chief Executive Officer CEP Connection Endpoint CEPT European Conference of Posts and Telecommunications (in French) CERFnet California Education and Research Federation Network CERN European Organisation for Nuclear Research (French: Organisation (formerly Conseil) Europeenne pour la Recherche Nucleaires) CERT Computer Emergency Response Team CET Council for Educational Technology CEV Controlled Environment Vault CEVI Common Equipment Voltage Indicator CF Carry Forward CF Coin First (payphone) [telephony] CF Cystic Fibrosis [disease] CFC Chloro-FluoroCarbon [chemical] CFC Combined Federal Campaign CFCA Communications Fraud Control Association CFD Computational Fluid Dynamics .CFG Configuration (file name extension) CFI Configurable Interface (SIPB) CFI Cost, Freight, and Insurance CFL Canadian Football League CFNR Call Forwarding No Reply (I.252 C) CFO Chief Financial Officer CFP Call Forwarding Busy (I.252 B) CFR Code of Federal Regulations CFS Catalogue Filing System [GEC] CFS2 Catalogue Filing System mark 2 [GEC] CFSM Catalogue Filing System Manager [GEC] CFU Call Forwarding Unconditional (I.252 D) CFV Call For Votes [Bitnet] CG Coast Guard CG Commanding General CGA Color Graphics Adapter CGA Color Graphics Adapter CGB Circuit Group Blocking (SS7: in ISUP) CGBA CGB Acknowledgement CGCT Compagnie Generale de Constructions Telephoniques CGE Compagnie Generale d'Electricite CG&E Cincinnati Gas & Electric CGI Computer Generated Images CGI Computer Graphics Interface CGM Computer Graphics Metafile (ISO DIS 8632) .CGM Computer Graphics Metafile (file name extension) .CGM Graph (file name extension) [Lotus 1-2-3] [LDC] CGN Concentrator Group Number CGU Circuit Group Unblocking (SS7: in ISUP) CGUA CGU Acknowledgement CH Cardboard Heroes CH ClearingHouse CH CourtHouse CH Customs House CHA Champions CHAP Challenge Authentication Protocol (protocol) CHAP CHAnnel Processor CHAP Communications HAndling Process [GEC] CHAPS Clearing House Automated Payment System CHAR Character CHCK Channel Check CHCP Change Code Page [OS/2] CHGRP Change Group CHI Chill:=Adventures into the Unknown CHI Chill: Adventures into the Unknown .CHK CHKDSK (file name extension) CHKDSK Check Disk CHMOD Change Mode CHOTS Corporate Headquarters Office Technology System CHOWN Change Owner CHP California Highway Patrol CHP CHannel Processor [ICL] CHP Chapter CHR Character CI Cubic Inches C/I Command/Indicate CIA Central Intelligence Agency [US Government] CIC Carrier Identification Codes [telephony] (10XXX codes) CIC Circuit Identification Code CIC Committee on Institutional Cooperation CIC Coordination and Information Center [CSNet] CICA Competition in Contracting Act CICS Customer Information Control System [IBM] CICS/VS Customer Information Control System/Virtual Storage [IBM] CID Caller ID [telephony] (see also: CLID, ANI) CID Central Institute for the Deaf CID Charge Injection Device (see CCD) CID Computer Integrated Design CID Connection Identification CIDIN Common Icao Data Interchange Network CIF Common Intermediate Format (for ISDN high end video) CIGAR Computer Introductory Guide And Reference [RAL] CII Call Identity Index CIL Computer Instrumentation Ltd [the Company] CIM CompuServe Information Manager CIM Computer Integrated Manufacturing CIM Computer Integrated Manufacturing CIO Chief Information Officer CIOCS Communication Input/Output Control System CIP Command Interface Port CIP Control Interface Port CIRC Circular Reference CIRR C/I Receive Register CIS CompuServe Information Service CIS Computer Information Systems CIS Customized Intercept Service CISC Complex Instruction Set Computer CISC Complex Instruction Set Computing Cislunar - The space between the Earth and the Moon CIT California Institute of Technology CIT Case Institute of Technology (part of CWRU, Cleveland, OH) CIT Circumstellar Imaging Telescope [Space] CIT Cranfield Institute of Technology CIX Compulink Information Exchange CIXR C/I Transmit Register CK Checkbits CKD Count Key Data (device) CKS Clock select bit CLADP Cambridge Linear Analysis and Des'n Package [control engin'g] CLAR Channel Local Address Register CLASP Comprehensive Logistics Automated Support Program CLASS Centralized Local Area Selective Signaling CLASS Custom Local Area Signaling Service [telephony] CLC Clear Carry Flag CLD Clear Direction Flag CLDN Calling Line Directory Number CLEI Common-Language Equipment Identification CLI Call-Level Interface CLI Clear Interrupt Flag CLI Command Line Interface CLI Command Line Interpreter CLID Calling Line IDentification [telephony] (see also: CID, ANI) CLIP Calling Line Identification Presentation (I.251 C) CLIR Calling Line Identification Restriction (I.251 D) CLIST Command List CLK Clock CLK Clock CLLI Common-Language Location Identification CLNP Connectionless Network Protocol .CLP Clipboard (file name extension) [Windows] CLPA Cold Link Pack Area[MVS] CLR Combined Line and Recording CLRC Circuit Layout Record Card CLS Clear Screen CLS Connectless-Mode Service CLT Communications Line Terminal CLTS Clear Task Switch Flag CLU Chartered Life Underwriter CLUT Color LookUp Table CLV Constant Linear Velocity CLV Constant Linear Velocity CM Centimeter CM Congregation of the Mission CM Connection Memory CM Control Mark CM Corrective Maintenance CM Corrective Maintenance CMA Concert Multi-thread Architecture CMAC Centralized Maintenance and Administration Center CMC Call Modification Completed (SS7: in ISUP) CMC Communication Machinery Corporation CMC Communication Mangement Configuration CMC Complement Carry Flag CMC Construction Maintenance Center CMD Centralized Message Distribution .CMD Command (file name extension) CMDF Combined Main Distributing Frame CMDS Centralized Message Data System CMI Computer Managed Instruction CMIP Common Management Information Protocol CMIP Common Management Information Protocol CMIS Common Management Information Services CMIS Common Management Information System CML Computer Managed Learning CML Current Mode Logic CML Current Model Logic CMMU Cache/Memory Management Unit CMMU Cache/Memory Management Unit [Motorola] CMOS Complementary Metal Oxide Semiconductor (see MOS) CMOS Complementary Metal-Oxide Semiconductor CMOT Common Management Information Services and Protocol Over TCP/IP CMP Compare CMP Computer CMPS Compare word String CMR Call Modification Request (SS7: in ISUP) CMRJ CMR reject (SS7: in ISUP) CMRR Common Mode Rejection Ratio CMS Call Management System CMS Circuit Maintenance System CMS Code Management System CMS Communications Management Subsystem CMS Compiler Monitor System CMS Conversation Monitor System CMS Conversational Monitor System [IBM] CMS Conversational Monitoring System CMSG Common Management Study Group CMSgt Chief Master Sergeant CMT Cellular Mobile Telephone CMU Carnegie Mellon University, Pittsburgh, Pennsylvania CMU Carnegie-Mellon University CMU COLT Measurement Unit CMU Control & Monitoring Unit CMY Cyan-Magenta-Yellow (color model) CMYK Cyan, Magenta, Yellow, blacK CMYK Cyan-Magenta-Yellow-Black (color model) CN Canadian National (railroad) [Corporate name] CN Canadian National (railways) CN Change Notice CN Connection CNA Communications Network Application CN/A Customer Name/Address [telephony] CNAB Customer Name/Address Bureau CNC Computer Numerical Control CNC Computerized Numerical Control CNCC Customer Network Control Center .CNF Configuration (file name extension) CNG Calling (tone) CNI Common Network Interface [telephony, AT&T department] CNMS Cylink Network Management System CNN Cable News Network CNO Chief of Naval Operations CNR Canadian National Railways CNR Carrier to Noise Ratio CNRI Corporation for National Research Initiatives CNS Central Nervous System CNS Complimentary Network Service CNSS Core Nodal Switching Subsystem [Internet] CNV Conventional (pertaining to Memory) CNVT Convert CO Cash Order CO Central Office CO Central Office [telephony] CO Colorado CO Command Output CO Commanding Officer CO Conscientious Objector CO Convert Out C/O in Care Of CO3 ICL communications protocol COA Change Over Acknowledgement (SS7: in MTP) COAM Customer Owned And Maintained COB Close Of Business .COB COBAL source code (file name extension) COBOL COmmon Business Oriented Language COBOL Common Business-oriented Language (See HLL) COC Call of Cthulhu COC Circuit Order Control COCOT Customer Owned, Coin Operated Telephone [telephony] COCOT Customer-Owned Coin-Operated Telephone COD Collect On Delivery; Cash On Delivery .COD Code List (file name extension) CODASYL COnference on DAta SYstem Languages CODASYL Conference on Data System Languages (Group that designed COBOL) CODCF Central Office Data Connecting Facility CODEC COder-DECoder CODEC Coder/Decoder CODIL Context dependent information language [Brunel] COE Central Office Equipment COEES COE Engineering System COEM Commercial Original Equipment Manufacturer COER Central Office Equipment Report COGO Coordinate Geometry (Programming Language) COL Collision COL Computer Oriented Language COLA Cost-Of-Living Allowance COLP Connected Line Identification Presentation (I.251 E) COLR Connected Line Identification Restriction (I.251 F) COLT Central Office Line Tester COM Computer Output [on] Microfiche COM Computer Output [on] Microfilm COM Computer Output on Microfilm .COM Command (file name extension) COM1 First serial Port (asynchronous port) COM2 Second serial Port COM3 Third serial Port COM4 Fourth serial Port COMAL COMmon Algorithmic Language COMAS Central Office Maintenance and Administration System COMDEX Computer Dealers Exposition COM/EXP PCM-Compander/Expander COMGEN COMment GENerator [GEC] COMIT a string manipulation system COMM COMMand process [GEC] COMM Communications COMP Compare + Communications COMPACT COMmercial Product ACquisition Team COMPEDA CAD software supplier [qv GAELIC, DRAGON, PDMS] COMSAT Communications Satellite Corporation COMSAT COMmunications SATellite [Space] CON Console (includes Keyboard and Screen) CONF Conference Calling (I.254 A) CONFIG Configuration CONN Connect Message (I.451) CONN CONNector CONN route of CONX in module DMAN [GEC] CONS Connection-Oriented Networking Session CONS CONStruct (LISP) CONTAC Central Office NeTwork ACcess CONUS CONtinental United States CONX data management stream CONneXion [GEC] COO Change Over Order (SS7: in MTP) COP Call Offering Procedure COPPER Control Of Peripherals, Priorities, Enquiry and Report CORAL Computer On-line Real-time Applications Language CORC Commands and Responses Definition and Compressing Program (IOS) CORE COntrolled Requirement Expression CORN COmputer Resource Nucleus CORNET CORperate NETwork CorNet Corporate Network Protocol (ECMA and CCITT Q.930/931 oriented) COS Compatible Operating System COS Connection-Mode Service COS Core Operating System COS Corporation for Open Systems COSMIC COmmon System Main InterConnecting frame COSMIC COmmon Systems Main InterConnection frame system COSMIC COmputer Software Management and Information Center COSMOS COmputer System for Mainframe OperationS COSMOS Computer System for Mainframe Operations COSMOS COmputerized System for Mainframe OperationS COT Central Office Terminal (opposite to RT) COT Continuity (SS7: in ISUP) CP Canadian Pacific CP Chemically Pure CP Command Post CP Command Processor CP Control Program CP CoPy CP Copy Protected CP the Canadian Press CPA Certified Public Accountant CPA Certified Public Accountant CPA Critical Path Analysis CPC Cellular Phone Company CPC Circuit Provisioning Center CPD Central Pulse Distributor CPD Common Packet Data Channels CPE Central Processing Element CPE Central Program Exchange [Wolverhampton Poly] CPE Computer Performance Evaluation CPE Customer Premise Equipment CPE Customer Premises Equipment CPE Customer Provided Equipment CPE Customer Provided Equipment CPE Customer-Premises Equipment CPFF Cost Plus Fixed Fee CPG Call Progress (SS7: in ISUP) CPG Clock Pulse Generator CPH Cost Per Hour CPI Characters Per Inch CPI Characters Per Inch CPI Clock Per Instruction CPI Common Programming Interface CPI Common Programming Interface [IBM] CPI Computer Private branch exchange Interface .CPI Code Page Information (file name extension) [MS-DOS] CPI-C Common Programming Interface for Communications [IBM] CPL Combined Programming Language CPL Command Procedure Language [Prime] CPL Current Privilege Level CPM Cards Per Minute CPM Control Program for Microcomputers (sometimes CP/M) CPM Control Program Monitor (sometimes CP/M) CPM Cost Per Minute CPM Critical Path Method CP/M Control Program for Microcomputers CP/M Control program for microcomputers [Digital Research] CPMP Carrier Performance Measurement Plan CPO Chief Petty Officer CPO Chief Post Office CPO Customer Premises Equipment CPR Canadian Pacific Railway CPS Characters Per Second CPS Characters Per Second + Cycles Per Second CPSE Campus Packet Switch Stream Exchange CPSR Computer Professionals for Social Responsibility CPT CaPTain CPT Command Pass Through CPU Central Processing Unit CPU Central Processing Unit CP-V Control Program 5 [Xerox Sigma] CPW Certified Public Weigher CQ Change of Quarters CQ Charge of Quarters CQM Circuit Group Query (SS7: in ISUP) CQR CQM Response CR Carriage Return CR Carriage Return (ASCII 15 octal) CR Control Response CRA Computer Retailers Association CRAF Comet Rendezvous/Asteroid Flyby [Space] CRAM Card Random Access Memory CRAS Cable Repair Administrative System CRC Chemical Rubber Company CRC Customer Record Center CRC Cyclic Redundancy Check CRC Cyclic Redundancy Check CRC Cyclical Redundancy Character CRCOK CRC ok! (C/I channel code) .CRD Cardfile (file name extension) CRED Credit Card Calling (I.256 A) CREF Connection Refused CREG Concentrated Range Extension with Gain CREG Concentrated Range Extention with Gain CREN Computer Research Education Network CREN Corporation for Research and Educational Networking CREN The Corporation for Research and Educational Networking (merge of BITNET and CSNet) CRF Cross Reference File CRFMP Cable Repair Force Management Plan CRIS Customer Record Information System CR/LF Carriage Return/Line Feed CROM Control Read Only Memory CRRES Combined Release and Radiation Effects Satellite [NASA] CRS Centralized Results System CRSAB Centralized Repair Service Answering Bureau CRT Cathode Ray Tube CRT Cathode Ray Tube (also generic reference to a terminal) CRTC Canadian Radio-television and Telecommunications Commission CRTC CRT Controller CRUS Computer Resource UnitS CS Cable Switching CS Chip Select + Clear to Send + Code Segment CS Civil Servant CS Computer Science CS Conducted Susceptibility (EMS) CS County Seat C&S Chivalry & Sorcery CSA Carrier Serving Area CSA Common Service Area CSA Computing Services Association [MVS] CSA Confederate States of America CSAB Computing Sciences Accreditation Board CSACC Customer Service Administration Control Center CSACS Centralized Status, Alarm and Control System CSALLOC USER IPM route of STOR [GEC] CSAR Centralized System for Analysis Reporting CSAR Channel System Address Register CSC Cell Site Controller CSC Computer Sciences Corporation CSD Corrective Service Disk [IBM] CSDC Circuit Switched Digital Capability CSDN Circuit-Switched Data Network (T.70) CSE Circuit Switching Exchange CSF Course Structuring Facility [IBM] CSF Critical Success Factor CSG Constructive Solid Geometry CSG Consulting Services Group [Lotus] CSI Commercial Systems Integration CSIS Canadian Security and Intelligence Service CSL Coin Supervising Link CSL Computer Sensitive Language CSL Control & Simulation Language CSM Command Sergeant Major CSMA Carrier Sense Multiple Access CSMA Carrier Sensing Multiple Access CSMA/ Carrier Sense Multiple Access CSMA/CA Carrier Sense Multiple Access with Collision Avoidance CSMACD Carrier Sensing Multiple Access with Collision Detection CSMA/CD Carrier Sense Multiple Access with Collision Detection CSMA/CD Carrier Sense Multiple Access/Collision Detection CSMA/CD Carrier Sense Multiple Access/with Collision Detection CSMP Continuous System Modelling Program [IBM] CSNET Computer + Science Network (merged with BITNET to make CREN) CSNET Computer Science Network CSNET Computer Science NETwork [USA] CSO Central Services Organization CSO Cold Start Only (in EOC) CSOC Consolidated Space Operations Center (at Colorado Springs) CSOC Consolidated Space Operatons Center (at Colorado Springs) CSP Commercial Subroutine Package CSP CompuCom Speed Protocol [CompuCom] CSP Control Switching Point CSPDN Circuit-Switched Public Data Network CSR Clock Shift Register CSR control & status register [DEC] CSR Control and Status Register CSR Customer Service Representative [telephony] CSRG Computer Systems Research Group CSRS civil Service Retirement System CSS Computer Sub-System CSS Continuous System Simulator (Language) CSS Customer Switching System CST Call State or Current State or Change State (quasi SDL) CST Central Standard Time CST Current Segment Table [GEC] CST0 Current Seg't No. 0 (normal local variables & global data) [GEC] CST1 Current Seg't No. 1 (program data & Fortran COMMON) [GEC] CST2 Current Seg't No. 2 (data segments for program use) [GEC] CST3 Current Seg't No. 3 (holds the current code module) [GEC] CSTA Computer-Supported Telephony Applications CSU Channel Service Unit CSU Channel Service Unit CSV Comma-Separated Variables CSW Channel Status Word [IBM] CT Call Transfer (I.252 A) CT Central Time CT Connecticut C&T Chips and Technologies CTC Canadian Transport Commission CTC Central Test Center CTC Centralized Traffic Control [railroad] CTC Centralized Traffic Control (railways) CTCChannel - to Channel CTD Computing and Telecommunications Division CTIO Cerro Tololo Inter-american Observatory CTL Computer Technology Limited [the Company] CTM Contac Trunk Module 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 CTPA Coax-to-Twisted-Pair Adapter CTRL Control CTS Clear To Send CTS Clear To Send CTSS Compatible Time Sharing System CTSS Compatible Time-Sharing System [MIT] CTSS Cray Time Sharing System CTT Cartridge Tape Transport CTTC Cartridge Tape Transport Controller CTTN Cable Trunk Ticket Number CTV Canadian TeleVision network CU Close-Up CU Control Unit CU Customer Unit CUA Common User Access CUA Common User Access [IBM] CUB Cursor Backward CUCRIT Capital Utilization CRITeria CUD Cursor Down CUDF Call User Data Field CUDN Cambridge University Data Network CUF Cursor Forward CUG Closed User Group (I.255 A) CUI Common User Interface [IBM] CUL See You Later [net jargon] CUP Cursor Position CUPID Completely Universal Processor I/O Design [AST] .CUR Cursor (file name extension) CUTE Clarkston University Terminal Emulator CU/TK Common Update/EQuipment system CUU Cursor Up CV Curriculum Vitae CVF Compressed Volume File [Microsoft] CVGA Color Video Gaphics Array CVIA Computer Virus Industry Association CVIO Cold Virtual Input/Output[MVS] CVOL system Catologue VOLume CVR Compass Voice Response CVT Communications Vector Table [IBM] CVW CodeView for Windows CW Call Waiting (I.253 A) CW Car Wars CW Chemical Warfare CW Child Welfare CW Churchwarden CW Churdwarden CW Continuous Wave CWC City-Wide Centrex CWD Convert Word to Double Word CWIS Campus Wind Information Systems [Internet] CWO Cash With Order CWO Chief Warrant Officer CWRU Case Western Reserve University CXI Common X-windows Interface CY Calendar Year CYL Cylinder CYMK Cyan-Yellow-Magenta-Black (color model) CYO Catholic Youth Organization CZ Canal Zone D Depth D2T2 Dye Diffusion Thermal Transfer (printing) DA Days after Acceptance DA Department of Agriculture DA Deposit Account DA District Attorney DA Don't Answer [used in telephony, may be more general] D/A Digital to Analog D/A Digital to Analog converter (also DAC) DAA Data Access Arrangement DAA Decimal Adjust for Addition DAC DAP Access Controller [ICL] DAC Data Acquisition and Control DAC Digital to Analog Converter DAC Digital to Analog Converter DA/C Directory Assistance Computerized DACCS Digital Access Cross Connect System [telephony] (suspect, see below) DACD Digital & Analogue Circuit Design DACK DMA ACK DACOM Data Communictions Corporation of Korea (ROK) DACS Digital Access Cross-connect System [telephony] DACS Directory Assistance Charging System DAD Draft ADdendum DAEDR Delimitation, Alignment and Error Detection Procedure DAIS Distributed Automatic Intercept System DAL Data Access Language [Apple Computer] DAL Dedicated Access Line [telephony] DAL Disk Access Lockout DAM Data Acquisition and Monitoring DA/M Directory Assistance Microfilm DAML Digital Added Main Line (pair gain) DAP Data Access Protocol [DEC] DAP Data Access Protocol [DEC] DAP Distributed Array Processor [ICL] DAP Division Advisory Panel [of NSF DNCRI] DAP Document Application Profile DAR Daughters fo the American Revolution DAR Daughters of the American Revolution DARC Division Alarm Recording Center DARI Database Application Remote Interface [IBM] DARPA Defence Advanced Research Projects Agency DARPA Defense Advanced Research Projects Agency (of the USA DoD, see also ARPA) DARPA Defense ARPA DARU Distributed automatic intercept system Audio Response Unit DAS Decimal Adjust for Subtraction DAS Directory Assistance System DAS Distributor And Scanner DASD Direct Access Storage Device DASD Direct Access Storage Device [IBM] DASS2 Digital Access Signaling System 2 (BT, DPNSS subset) DAS-WDT Distributor And Scanner-Watch Dog Timer DAT Digital Audio Tape DAT Digital Audio Tape + Disk Array Technology DAT Dynamic Address Translation .DAT Data (file name extension) DATA Defense Air Transport Administration DATACOM Data Communications DATEX German public packet switching network DAV Data Above Voice DAV Disabled American Veterans DB Data Base DB Data Buffer DB DataBase db decibel(s) [unit] DB2 Database 2 DBA Data Base Administrator DBAC Data Base Administration Center DBAS Data Base Administration System DBCS Data Bank Control System DBCS Double-Byte Character Set DBF DBase Format .DBF Database (file name extension) DBM Data Base Manager DBM DataBase Manager DBME DataBase Managment Environment DBMS Data Base Management System DBMS DataBase Management System (see also RDBMS) DBOS Data Bank Organization System DBOS Data Base organisation subroutines [ARC] DBP (Ger) German Federal Post DBRAD Data Base Relational Application Directory DBS Data Base Server DBS Duplex Bus Selector DBSS Data Bank Security System DC Data Collection DC Data Communication DC Data Control DC Device Cinfirmation (C/I channel code) DC Device Control DC Direct Current DC Direct Current (see also AC) DC District of Columbia DCA Defense Communications Agency DCA Digital Communications Associates DCA Distributed Communication Architecture DCA Document Content Architecture DCA Document Content Architecture DCAF Distributed Console Access Facility [IBM] DCAT Directory CreATe [GEC] DCB Data Control Block [IBM] DCB Disk Coprocessor Board [Novell] DCC Data Country Code (ISO 7498) DCC Descriptive Cataloging Committee DCC Descriptive Cataloguing Committee DCC Digital Compact Cassette + Display Combination Code DCCO Defense Commercial Communications Office DCCS DisContiguous Shared Segments DCD Data Carrier Detect DCD Data Carrier Detect (sometimes CD) DCDM Dispersed Computing Development Meeting [RAL] DCE Data Circuit-terminating Equipment DCE Data Communication Equipment DCE Data Communications Equipment DCE Distributed Computing Environment [OSF] DCE Distributed Computing Equipment DCF Data Communication Facility [IBM] DCF Data Compression Facility DCF Data Count Field [IBM] DCF Discounted Cash Flow DCF Document Composition Facility DCF Driver Configuration File [Lotus] DCH D Channel Handler DCH D-Channel Handling bit DCL Data Clock (IOM2) DCL DEC Command Language [DEC] DCL DEC Control Language DCL Declaration DCL Device Clear DCL Digital Command Language [DEC] DCL Digital Command Language [Digital] 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 Device Control n DCON Directory CONnect [GEC] DCP Distributed Communications Processor DCP Duplex Central Processor DCPR Detailed Contuing Property Record (PICS/DCPR) DCPSK Differential Coherent Phase-Shift Keying DCPU Data Communication Protocols Unit [DoI] DCS Data Collection System DCS Data Communications Subsystem DCS Data Control System DCS Desktop Color Separation DCS Digital Crosconnect System DCS Distributed Computing Systems [SERC] DCT Digital Carrier Trunk DCT Discrete Cosine Transform .DCT Dictionary (file name extension) D-CTL D Channel Controller (IDEC) DCTN Defense Commercial Telecommunications Network DCTS Dimension Custom Telephone Service DCX Digital Concentrating eXchange [CASE] DD Daredevils DD Data Dictionary DD Data Downstream (IOM2) DD Day + Digital Display + Double Density DD Days after Date DD Demand Draft DD Dishonorable Discharge DD Dishonourable Discharge DD Disk Drive DD Doctor of Divinity D&D Dungeons & Dragons DDB Device Dependent Bitmap DDC Digital Data Converter DDC Direct Department Calling DDCMP Digital Data Communications Message Protocol [DEC] DDCMP Digital Data Communications Message Protocol [DEC] DDD Direct Distance Dial(ing) DDD Direct Distance Dialing DDD Direct Distance Dialing [Telephony; principally US, elsewhere STD] DDE Direct Data Entry DDE Direct Data Entry + Dynamic Data Exchange [Microsoft] DDEL Directory DELete [GEC] DDEML Dynamic Data Exchange Manager Library [Microsoft] DDI Direct Dial In DDI Direct Dialing-In (I.251 A) DDK Device Driver Kit [Microsoft Windows] DDL Data Definition Language + Data Description Language DDL Data Description Language DDL Document Description Language DDM Distributed Data Management DDN Defense Data Network DDP Distributed Data Processing DDS Dataphone Digital Service [AT&T] DDS Design Data Sheet + Digital Data Storage DDS Digital Data Service DDS Digital Data System DDS Digital Dataphone Service DDS Direct Digital Service DDS Doctor of Dental Science DDS Doctor of Dental Surgery DDT DichloroDiphenylTrichloroethane DDT Dynamic Debugging Technique [DEC] DDX Digital Data Exchange DDX Distributed Data eXchange DE Data Efficiency [the Company] DE Delaware DEA Drug Enforcement Agency DEAC Deactivation (C/I channel code) DEAR Department of Energy Acquisition Regulation DEB Data Environment Block [IBM] DEB Data Extent Block [IBM] DEC Decrement DEC Device Clear DEC Digital Equipment Corporation DEC Digital Equipment Corporation [Corporate name] DECT Digital European Cellular Phone DECUS Digital Equipment Computer Users Society DEE (Ger) data terminal .DEF Definitions + Defaults (file name extensions) DEL Delete DEL Delete .DEM Demonstration (file name extension) DEQUE Double-Ended QUEue DERP Defective Equipment Replacement Program DES Data Editing System DES Data Encryption Standard + Data Entry Sheet DES Data Encryption Standard [NIST] DES Department of Education & Science .DES Description (file name extension) DESY Deutsches Electronen SYchlotron DET Detatch Message (I.451) DET Device Execute Trigger DEV Device DEW Distant Early Warning (as in DEW Line) DEW Distant Early Warning (line) DF Damage Free DF Data Field DF Destination Field DF Device Flag DF Direction Finding DF Double Flag D/F Direction Finding DFC Data Flow Control DFC Distinguished Flying Cross DFD Data Flow Diagram DFDR Disc Filing DRiver [GEC] DFE Data Flow Editor DFI Digital Facility Interface DFM Distinguished Flying Medal DFMS Digital Facility Management System DFR RAL program replacing DEFAULT ROUTING command [Feb 1983] DFS Depth-First Search DFS Distributed File System DFT Diagnostic Funtion Test DFT Discrete Fourier Transform DFT Distributed Function Terminal DFU Data File Utility DFW Dallas Fort Worth (regional airport) DG Data General [Corporate name] DG Data General [the Company] DG Dei Gratia (by the grace of God) DG Director General DGIS Direct Graphics Interface Standard DGSC Defense General Supply Center DHHS Department of Health and Human Services .DHP Doctor Halo PIC (file name extension) DHSS Department of Health and Social Security (UK) DI Data In DI Destination Index DI Deactivation Indication (C/I channel code) DIA Document Interchange Architecture DIA Document Interchange Architecture [IBM] DIAD (magnetic) Drum Information Assembler / Dispatcher DIAL Direct Information Access Line DIAS Defense Automatic Integrated System DIB Device Independent Bitmap DIBOL DEC Business Oriented Language DIBOL DIgital Business Oriented Language [DEC] DIC Digital Concentrator DIC Digital Interface Controller DIC Distributed Interactive Computing [SERC] .DIC Dictionary (file name extension) DID DI Downstream DID Direct Inward Dialing DID Direct Inward Dialing [telephony] DIE Disabled Interrupt Exit DIF Data Interchange Format DIF Digital Interface (Frame) DIF Document Interchange Format DIFFSENS Differential Sense DIGON (Ger) digital local network (Berlin) DIIP Direct Interrupt Identification Port DIM Data In the Middle DIN Deutsch Industrie Norm DIN Deutsche Industrie Norm (German equivalent of EIA) DIN Deutsches Institut fur Normung DIO Data Input-Output DIP Document Interchange Protocol (lower sublayer of OSI layer 6) DIP Dual In-line Package DIP Dual In-line Package + Dual In-line Pin DIR Direction DIR Directory (file) DIRE Dire Is Really Emacs DIS Disconnect DIS Draft International Standard (ISO) DIS Dynamic Impedance Stabilization [CompuCom] DISA Direct Inward System Access DISC Disconnect (LAP-D Command, I.451) DISD Direct Inward Subscriber Access DISOSS Distributed Office Support System [IBM] DISP Displacement (offset) DIU Deactivate Indication DIU Digital Interface Unit DIV Divide DIV (Ger) digital exchange DIVF (Ger) DIV for long distance service DIVO (Ger) DIV for local service DIW D-Inside Wire [AT&T] DIY Do It Yourself DJ Disc Jockey DJ Dump Job DJC Dependent Job Control DL Daresbury Laboratory [SERC] DL Data Language DL Download DL/1 Data Manipulation Language 1 [IBM] DL5MDA someone who collects each ISDN abbrevation crossing his way DLA Defense Logistics Agency DLAB Divisor Latch Access Bit DLC Data Link Control DLC Data Link Control (protocol) [IBM] DLC Digital Loop Carrier DLCI Data Link Connection Identifier (I.440: SAPI+TEI) DLCU Digital Line Carrier Unit DLCULC Daresbury Laboratory Computer User Liason Committee [SERC] DLE Data Link Escape DLE Data Link Escape (ASCII Control) DLE Delete DLL Data Link Layer [ISO OSI] DLL Dial Long Line equipment DLL Dial Long Lines DLL Dynamic Link Library DLM Dynamic Link Module DLO Dead Letter Office DLR DOS LAN Requester DLS Digital Line Section DLS Digital Link Service DLTU Digital Line/Trunk Unit DLUC Digital Line Unit Control DLU-PG Digital Line Unit-Pair Gain DM Delta Modulation DM Disconnected Mode (LAP-D Response) DM Dungeon Master DMA Direct Memory Access DMA Direct Memory Access/Addressing DMAC DMA Controller DMAN Data MANagement [GEC] DMC DAP Management Committee [SERC] DMD Doctor of Dental Medicine DME Direct Machine Environment [ICL] DME Distance Measuring Equipment DME Distributed Management Environment DMF Probably part of an X.400 address in Europe DMI Digital Multiplexed Interface DML Data Manipulation Language DML Data Manipulation Language DML Data Manipulation Logic DMM Digital Multimeter DMMS Dynamic Memory Management System DMOS Diffusion Metal Oxide Semiconductor (see MOS) DMOS Diffussion Metal Oxide Semiconductor (see MOS) DMOS Double-diffused Metal Oxide Semiconductor DMOS Double-diffused Metal-Oxide Semiconductor DMP Dot Matrix Printer DMS Data Management Software + Data Management System DMS Data Management System DMS Digital Multiplexed System DMSD Digital Multistandard Decoding DMTF Desktop Management Task Force DMU Data Manipulation Unit DMV Department of Motor Vehicles (Calif) DMY Day Month Year DMZ DeMilitarized Zone DN Directory Number DN Down DNA DeoxyriboNucleic Acid DNA Digital Network Architecture DNA Digital Networking Architecture [DEC] DNA Dioxyribonucleic Acid DNC Direct Numerical Control DNC Direct Numerical Control DNC Dynamic Network Controller DNCRI [NSF] Division of Networking and Communications Research and Infrastructure DNHR Dynamic Non Hierarchical Routing DNHR Dynamic NonHierarchical Routing DNIC Data Network Identification Code [telephony ISO 7498] DNIS Dialed Number Identification Service DNIS Dialed Number Identification Service (see also DID) [telephony] DNL Director of Naval Laboratories DNR Dialed Number Recorder [telephony] DNS Domain Name System DNS Domain Naming System DNX Dynamic Network X-connect DO Data Out DOA Dead On Arrival DOB Date Of Birth DOC Dynamic Overload Control .DOC Document + Documentation (file name extensions) DOCS Display Operator Console System DOD (American) Department of Defense DOD Department Of Defense DoD Department of Defense [US Government] DOD (USA) Dept. of Defense DOE Department of Energy DoE Department of Energy [US Government] DOI Department of Industry [UK] DOJ Department Of Justice DOM Data On Master group DOMAIN Distributed Operating Multi Access Interactive Network (Apollo) DOS Disc Operating System DOS Disk Operating System DOS Disk Operating System DOSEM DOS Emulation DOST Disc Operating System for Testing [GEC] ? DOT Department Of Transportation [US Government] DOT&E Director, Operational Test and Evaluation DOTS Digital Office Timing Supply DOV Data Over Voice [telephony] DOW Day Of Week DP Data Processing DP Data Processing DP Demarcation Point DP Diagnostic Process [GEC] DP Dial Pulse [telephony] DP Displaced Persons (expelled from native land) DP Display Postscript DP Double Play DP Draft Proposal DPA Delegation of Procurement Authority DPA Demand Protocol Architecture [3Com] DPAC Dedicated Plant Assignment Center DPAM Demand Priority Access Method DPANS Draft Proposed American National Standard DPAREN Data Parity Enable [IBM] DPB Drive Parameter Block DPC Destination Point Code (SS7) DPC Direct Program Control DPCM Differential PCM DPE Data Path Extender DPI Dots Per Inch DPI Dots Per Inch DPL Descriptor Privilege Level DPLL Digital Phase Locked Loop DPM Digital Panel Meter DPMA Data Processing Management Association DPMI DOS Protected Mode Interface [Microsoft] DPN-PH Data Packet Network-Packet Handler DPNSS Digital Private Network Signaling System (BT) DPO Data Phase Optimization DPP Discounted Payback Period DPS Display PostScript DPSK Differential Phase Shift Keying DPSK Differential Phase Shift Keying DPSK Differential Phased-Shift Keying DPtoTP Display Coordinates to Tablet Coordinates (converting) DQ Dairy Queen DQ Dragon Quest DQDB Distributed Queue Dual Bus (IEEE 802.6) [telephony, networking] DQL Database Query Language DR Data Ready DR Data Receive DR Data Received DR Deactivate Request (C/I channel code) DR Deactivation Request DR Dead Reckoning DR Dining Room DR Disk Reader D/R Direct or Reverse DRAC Directory Record ACcess [GEC] DRAD Directory Record Allocate & Delete [GEC] DRAGON draughting aid for CAD [Compeda] DRAM Dynamic RAM DRAM Dynamic Random Access Memory DRAM Dynamic Random Access Memory (as opposed to static RAM) DRAW Direct Read After Write DRCS Dynamically Redefinable Character Sets DRD Data Reading Device DRDA Distributed Relational Data Architecture [IBM] DRDW Direct Read During Write DRE Direction DRE Directional Reservation Equipment DRG Democratic Republic of Germany (East Germany) DRI Defense Research Internet DRI Digital Research Incorporated DRI Digital Research, Incorporated [Corporate name] DRMU Digital Remote Measurement Unit DRO Data Request Output + Destructive Read-Out DRS Data Rate Select DRS Distributed Resource Sharing [ICL] .DRS WordPerfect Driver Resource (file name extension) DRV Drive .DRV Device Driver (file name extension) (Also see .DVR) .DRW Draw + Drawing (file name extensions) DS Data Segment + Data Send + Data Server + Double Sided DS Data System [IBM] DS Digital carrier Span DS Digital Signal DS Direct Signal DS Double-Sided DSA Dial System Assistance DSBAM Double-SideBand Amplitude Module DSC Digital Subscriber Controller Am79C30A DSDC Direct Service Dial Capability DSDD Double Sided, Double Density (diskette) DSE Data Storage Equipment DSE Data Structure Editor DSEA Display Station Emulation Adapter DSECT Dummy Control Section DSEE Domain Software Engineering Environment DSGLA (Ger) DLS DSHD Double Sided, High Density (diskette) DSI Digital Speech Interpolation DSIA DEC Systems Interconnection Architecture DSL Dynamic Simulation Language DSM Digital Switching Module DSM Distinguished Service Medal DSMX (Ger) digital signal multiplexer DSN Digital Signal (level) N DSO Distinguished Service Order DSP Decessit Sine Prole (died without issue) DSP Digital Signal Processing DSP Digital Signal Processing DSP Digital Signal Processor DSP Digital Signal Processor DSP Domain Specific Part (ISO 7498) DSPL De-SPooLer [GEC] DSQD Double Sided, Quad Density (diskette) DSR Data Set Ready DSR Data Set Ready DSR Device Status Register DSR Device Status Report DSR Dynamic Service Register DSRI Digital Standard Relational Interface DSS Data Station Selector DSS Decision Support System DSS Decision Support System DSS Direct Station Selection [telephony] DST Daylight Saving Time DSTN Double SuperTwisted Nematic DSTN Double Supertwisted Nematic DSU Data Service Unit DSU Data Servicing Unit DSU Digital Service Unit DSU Disc Space Unit, 256 bytes on a RAL-supported GEC DSW Data Status Word + Device Status Word DSX Digital System X-connect DT Data Through (C/I channel code in test mode) DT Data Transmit DT Delirium Tremens DT Di-group Terminal DT1 Data Form Class 1 DTA Disk Transfer Area .DTA Data (file name extension) DTAM Document Transfer Access and Manipulation DTAS Digital Test Access System DTC Digital Telephone Controller (ARCOFI + IBC + ICC) DTC Digital Trunk Controller DTC Di-group Terminal Controller DTD Document Type Definition DTE Data Terminal Equipment DTE Data Terminal Equipment + Dumb Terminal Emulator DTF Dial Tone First payphone [telephony] DTG Direct Trunk Group DTIF Digital Transmission Interface Frame DTL Diode-Transistor Logic DTL Diode-Transistor Logic DTM Digital Trunk Module DTMF Dial Tone Multi Frequency [telephony] DTMF Dual Tone Multi Frequency [telephony] DTP DeskTop Publishing DTP Desktop Publishing DTR Data Terminal Ready DTR Data Terminal Ready + Data Transfer Rate DTU Di-group Terminal Unit DU Data Upstream (IOM2) DU Deactivation Request Upstream (C/I channel code) DU Disk Usage DUAT Direct User Access Terminal DUI Driving Under the Influence DUP Data User Part DUT Device Under Test DUV Data Under Voice DV Deo Vo lente (God willing) .DV DESQview Script (file name extension) DVA (Ger) data processing equipment DVI Digital Video Interactive DVM Digital Volt Meter DVM Doctor of Veterinary Medicine .DVR Device Driver (file name extension) (see also .DRV) DVX Digital Voice eXchange DWAPS Defense Warehousing Automated Processing System DWG Drawing DWI Driving While Intoxicated DWIM Do What I Mean DX Distance (as in long distance radio communication) DX Distance (as in long distance rado communication) .DXB Drawing Interchange Binary (file name extension) [AutoCAD] DXC Data Exchange Control DXF Drawing Interchange Format DXT Data eXtractT facility DYRECT SIDES Dynamic Real Time Communication Tester E East E Espionage E911 Enhanced 911 EA Expedited Data Acknowledgement (SS7: in SCCP) EA Extended Adress EA Extended Attribute [OS/2] EADAS Engineering and Administrative Data Acquisition System EADAS/NM - EADAS/Network Management EADASS Engineering and Administrative Data AcquiSition System EAEO Equal Access End Office EAN Certainly part of an X.400 Address in Europe EARN European Academic Research Network EARN European Academic Research Network EAROM Electrically Alterable Read Only Memory EAROM Electrically Alterable Read-Only Memory EARS Electronic Access to Reference Services EAS Engineering Administration System) EAS Extended Announcement System EAS Extended Area Service EASD Equal Access Service Date EATA Enhanced AT Bus Attachment EB Engineering Board [SERC] EBC EISA Bus Controller EBCC Engineering Board Computer Committee [SERC] EBCDIC Expanded Binary Coded Decimal Interchange Code [character code] EBCDIC Extended Binary Coded Decimal Interchange Code EBCDIC Extended Binary Coded Decimal Interchange Code [IBM] EBCDIC Extended Binary Coded Decimal Interexchange Code EBI Equivalent Background Input EBI Extended Background Investigation EBL Electron Beam Lithography EBT Electronic Benefits Transfer EC Echo Canceller EC European Community EC Exchange Carrier [telephony] ECAFE Economic Commission for Africa and the Far East ECAL Enjoy Computing And Learn ECAP Electronic Customer Access Program ECASS Electronically Controlled Automatic Switching System ECASS Export Control Automated Support System ECB Event Control Block [IBM] ECC Enter Cable Change ECC Error Check Code ECC Error Checking and Correction ECC Error Correcting Code ECC Error Correction Code ECCM Electronic Counter-CounterMeasures ECCS Economic C (hundred) Call Seconds ECD Enhanced Color Display ECDO Electronic Community Dial Office ECF Enhanced Connectivity Facility ECG Electrocardiogram ECHO European Commission Host Organisation ECL Emitter Coupled Logic ECL Emitter Coupled Logic (see also TTL) ECLSS Environmental Control and Life Support System [Space] ECM Electronic Counter Measure ECM European Common Market ECMA European Computer Manufactueres Association ECMA European Computer Manufacturers Association ECMA European Computer Manufacturers Association ECO Ecological ECO Electronic Central Office ECO Engineering Change Order E-COM Electronic Computer Originated Mail ECP Enhanced Capabilities Port [Microsoft] ECPA Electronic Communications Privacy Act [US law] ECPT Electronic Coin Public Telephone ECS Electronic Crosconnect System ECT Electro-convulsive Therapy ECT ElectroConvulsive Therapy ECTL Electronic Communal Temporal Lobe ECV Electric Cargo Vehicle [NASA OEXP] ED Erase Display EDA Embedded Document Architecture [Go Corporation] EDAC Electromechanical Digital Adapter Circuit EDC Enhanced Data Correction EDC Error Detection and Correction EDC External Disc Controller [GEC] ED&D Expert Dungeons & Dragons EDDC Extended Distance Data Cable EDGAR Electronic Data Gathering, Analysis, and Retrieval EDI Electronic Data Interchange EDI Electronic Data Interchange EDI Electronic Document Interchange [DEC] EDIF Electronic Design Interchange Format EDIFACT EDI for Administration Commerce and Transport EDIUC Edinburgh Decsystem-10 Installation Users Committee [SERC] EDLC Ethernet Data Link Control EDLIN Editor (Line Text) EDO Extended Duration Orbiter [Space] EDOS Enhanced DOS for Windows EDP Electronic Data Processing EDP Electronic Data Processing EDPM Electronic Data Processing Machine EDS Electronic Data Systems EDSAC Electronic Delay Storage Automatic Computer EDSAC Electronic Delay-line Storage Arithmetic Computer(?) [Cambridge] EDSI Enhanced Small Device Interface EDSX Electronic Digital Signal X-connect EDT Eastern Daylight Time EDTA Ethylene Diamine Tetraacetic Acid EDTCC Electronic Data Transmission Communications Central EDVAC Electronic Discrete Variable Automatic Computer (1st stored-program digital computer) EE Electrical Engineer EE Electrical or Electronics Engineer EEC European Economic Community EEC European Economic Comunity EEC Extended Error Correction EECT End-to-End Call Trace EEDP Expanded Electronic tandem switching Dialing Plan EEG Electroencephalogram EEG Electroencephalogram EEHO Either End Hop Off EEI Equipment-to-Equipment Interface EEL Epsilon Extension Language EEM Extended Memory Management EEMS Enhanced Expanded Memory Specification E&EO Errors and Omissions Excepted EEPROM Electrically Erasable Programmable Read-Only Memory EFA Extended File Attribute EFF Electronic Frontier Foundation EFI Electromechanical Frequency Interference + Electronics For Imaging EFL Emitter Follower Logic EFL (Teaching) English as a Foreign Language EFRAP Electronic Feeder Route Analysis Program EFTS Electronic Funds Transfer System eg Latin, "exampli gratia": for example, literally, "free example" EGA Enhanced Graphics Adapter EGP Exterior Gateway Protocol [Internet] EHF Extremely High Frequency (30-300GHz) EIA Electronic Industries Association EIA Electronic Industry Association EIA Electronics Industries Assotiation EIn Error Indication n (C/I channel code) EIN European Informatics Network EINE EINE Is Not Emacs EIS Executive Information System EIS Expanded Inband Signaling EIS Extended Instruction Set [DEC] EISA Extended Industry Standard Architecture EISA Extended Industry-Standard Architecture EISS Economic Impact Study System EISS European Intelligence Support System EITB Engineering Industry Training Board EKG ElectroKardioGramm (see ECG) EKTS Electronic Key Telephone Sets EL ElectroLuminescent (as in display) EL Electroluminescent (display) + Erase Line ELECTRIC interactive computing environment on RAL IBM 360/195 ELF Extremely Low Frequency ELF Extremely Low Frequency ELO Electric Light Orchestra ELP Emerson, Lake and Palmer (or Powell) ELP Emerson, Lake and Palmer (the rock band) ELS Entry Level System ELV Expendable Launch Vehicle [Space] EM Electronic Mail + Expanded Memory EM Encription Module EM End of Medium (ASCII Control) EM Enlisted Man (see EW) E&M ``Ear and Mouth''; receive and transmit leads of a signalling system E&M rEceive & transMit/Ear & Mouth signaling EMA Electronic Mail Association EMA Enterprise Management Architecture EMA Environment MAnager [GEC] ? EMA Error MAnager [GEC] ? EMACS Editor MACroS EMACS Eight Megabytes And Constantly Swapping E-MAIL Electronic MAIL E-MAIL Electronic Mail EMB Extended Memory Block [LIM/AST] EMBARC Electronic Mail Broadcast to a Roaming Computer [Motorola] EMC Electromagnetic Compatibility EMC Electromagnetic Compatibility + Extended Math Coprocessor EMC External Multiplexer Channel [GEC] EME Electromagnetic Emission EMF ElectroMotive Force (voltage) EMI Electromagnetic Interference EMI Electromagnetic Interference EML Expected Measured Loss .EML Electronic Mail (file name extension) EMM Expanded Memory Manager EMP Electromagnetic Pulse EMPRESS EnvironMental Pulse Radiation Environment Simulator for Ships EMR ElectroMagetic Response EMR Electro-Magnetic Radiation EMR ElectroMagnetic Response EMS Electromagnetic Susceptibility EMS Electronic Mail System EMS Electronic Message Service EMS Electronic Message System EMS Expanded Memory Specification EMS Expanded Memory Specification [LIM] EMS Extended Memory Specification EMT Emergency Medical Technician EMU ElectroMagnetic Unit EMU Extravehicular Mobility Unit [Space] EMV EMC (German) .ENC Encoded (file name extension) ENDS Ends Segment ENFIA Exchange Network Facility for Interstate Access ENIAC Electronic Numerical Integrator and Calculator ENIAC Electronic Numerical Integrator and Computer (First fully electronic digital computer) ENQ Enquiry ENQ Enquiry ENS ENSign ENSS Exterior Nodal Switching Subsystem [Internet] EO End Office [telephony] EO Erasable Optical EOA End of Address EOB End of Block EOC Embedded Operation Channel EOC End of Conversion EOE Electronic Order Exchange EOF End Of File EOF End of File EOI End or Identify EOJ End of Job EOL End of Line + End of List EOM End of Message EOM End of Message EOM End Of Month EOQ Economic Order Quantity EOR Exclusive OR (Also XOR) EOS End of String EOS Extended Operating System EOT End Of Table + End of Tape (marker) + End of Text + End of Transmission EOT End Of Tape EOT End Of Transmission EOTT End Office Toll Trunking EOWG Engineering and Operations Working Group (under FNC) EP Expedited Data (SS7: in SCCP) EP Experience Points EP Extended Play EPA Environmental Protection Agency EPIC Extended PIC PEB2055 EPL Effective Privilege Level EPL Electronic switching system Program Language EPLD Electrically Programmable Logic Device EPM Enhanced Editor for Presentation Manager [IBM] EPOS Engineering and Project-management Oriented Support system EPP Enhanced Parallel Port EPRI Electric Power Research Institute EPROM Electrically Programmable Read Only Memory EPROM Erasable Programmable Read Only Memory EPROM Erasable Programmable Read Only Memory EPROM Erasable Programmable Read-Only Memory EPS Encapsulated PostScript .EPS Encapsulated PostScript (file name extension) EPSCS Enhanced Private Switched Communication Service EPSF Encapsulated PostScript Files EPSS Experimental Packet Switch Stream Service [now PSS] EPT Empire of the Petal Throne EQ Educational Quotient (see IQ) EQ Equalizer ER Emergency Room ER Error Register ERA Earned Run Average ERA Entity-Relationship-Attribute ERA Equal Rights Amendment ERAR Error Return Address Register ERAS Electronic Routing and Approval System [Hughes Aircraft] ERC Error Control (IOS) ERCC Edinburgh Regional Computer Centre ERD Entity-Relation Diagram ERE Entity Relationship Editor EREP Environmental Recording Editing and Printing ERL Echo Return Loss ERLL Enhanced Run Length Limited EROM Erasable Read Only Memory ERP Effective Radiated Power ERR Error ERT Earth Resources Technology [Space] ERU Error Return address Update ES Expert System ES Extra Segment ESA European Space Agency ESA European Space Agency ESAC Electronic Surveillance Assistance Center ESAC Electronic Systems Assistance Center ESB Emergency Service Bureau ESC Enhanced Speech Circuit PSB4505/6 ESC Escape ESC Escape (ASCII Control) ESCC2 Extended high level Serial Communication Controller SAB82532 ESCC8 like ESCC2, but 8 channels SAB82538 ESCON Enterprise System Connection (Architecture) [IBM] ESD Electronic Software Distribution + Electrostatic Discharge ESDI Enhanced Small Device Interface ESDI Enhanced Standard Device Interface ESE East South East ESF Extended SuperFrame (Format) ESI Enhanced Serial Interface (specification) [Hayes] ESL Emergency Stand-Alone ESL English as a Second Language [teaching] ESM Electronic Support Measures ESN Electronic Serial Number ESN Electronic Switched Network ESO European Southern Observatory ESP Emulation Sensing Processor + Enhanced Serial Port [Hayes] ESP Enhanced Service Provider ESP Extra Sensory Perception ESP Extra-sensory Perception ESPE Engineering Science Program Exchange [QMC] ESPS Entropic Signal Processing System ESS Electronic Switching System ESS Electronic Switching System [telephony] ESSEX Experimental Solid State EXchange ESSX Electronic Switching Systen eXchange EST Eastern Standard Time EST established ESU Electro-Static Unit ET Eastern Time ET Exchange Termination ET External Tank [of the US Space Shuttle] ET Extra Terrestial ET Extra Terrestrial [Space] ET ExtraTerrestial ET ExtraTerrestrial ETA Estimated Time of Arrival ET/ACC External Tank/Aft Cargo Carrier (see also ET) [Space] ETANN Electrically Trainable Analog Neural + Network (chip) [Intel] ETAS Emergency Technical ASsistance ETB End of Transmission Block ETB End of Transmission Block etc Latin, "et cetera": "and the rest" ETD Estimated Time of Departure E-TDMA Extended Time Division Multiple Access ETF Electronic Toll Fraud ETFD Electronic Toll Fraud Device [telephony] ETH Eidgnoessiche Techniche Hochschule ETHERNET - LAN standard IEEE802 [DEC, Intel, Xerox] ETN Electronic Tandem Network ETO Earth-to-Orbit [Space] ETPL Endorsed Tempest Products List ETRI Electronics and Telecommunications ETS Econometric Time Series ETS Electronic Tandem Switching ETS Electronic Translation System ETS Electronic Translator System ETSACI Electronic Tandem Switching Adminstration Channel Interface ETSSP ETS Status Panel ETV Education TeleVision ETX End of Text ETX End of Text EU Execution Unit EUCLID Extensible UCL Interactive & Distributive system [UCLCC] EUUG European Unix User Group EUV Extreme UltraViolet EVA ExtraVehicular Activity EVE Extensible VAX Editor EVGA Extended Video Graphics Array + Extended Video Graphics Adapter EVST (Ger) end exchange EVX Electronic Voice eXchange EW Electronic Warfare EW Enlisted Woman (see EM) EWOS European Workshop for Open Systems EWS Employee Written Software [IBM] EWS Enhanced work station [SERC] EWSD (Ger) electronic dialing system (Digital) .EXE Executable (file name extension) EXE2BIN Program used to convert an (.EXE) file to binary format (.COM) file EXP Exponent EXT External EXTRN External Reference FA Football Association (British soccer--a word derived from Association) FA Frame Aligner FA Fuse Alarm FAA Facility Accepted (SS7: in ISUP) FAA Federal Aviation Agency [US Government] FAB Computer-Chip Fabrication Plant FAC Facility FAC File Access Code FACD Facility Changed Message FACD Foreign Area Customer Dialing FACD Foriegn Area Customer Dialing FACS Facilities Assignment and Control System FAMOS Floating Gate Avalanche MOS FAMULUS a system for filing & retrieving information [QMCCC/UCLCC] FAMULUS database - information and retrieval system FAO Food and Agriculture Organization of the united states FAO Food and Agriculture Organization [US Government] FAP File Access Protocol FAQ Frequently Asked Question FAR Facility Request (SS7: in ISUP) FAR Federal Acquisition Regulations FAS Foreign Agricultural Service FAS Frame Alignment Signal FAS Free Alongside Ship FASST Flexible Architecture Standard System Technology FAST First Application System Test FAT File Allocation Table FAT File Allocation Table FAT Foreign Area Translation FAT Foriegn Area Translation FAX FAcsimile FAX Facsimile FAX Faximile .FAX Fax (file name extension) FB Freight Bill FBI Federal Bureau of Investigation [US Government] FC Feature Control FC Frame Control FCAP Facility CAPacity FCB File Control Block FCB File Control Block [DEC] FCB Forms Control Buffer FCC Federal Communications Commission FCC Federal Communications Commission [US Government] FCC Federal Computer Conference FCC Forward Command Channel FCCSET Federal Coordinating Committee for Science, Education and Technology (under OSTP) FCG False Cross or Ground FCI Flux Changes per Inch FCS File Control System FCS Frame Check Sequence FD Floppy Disk + Full Duplex FDA Food and Drug Administration [US Government] FDC Floppy Disk Controller FDDI Fiber Digital Device Interface FDDI Fiber Distributed Data Interface FDDI Fiber Distributed Data Interface (X3T9.5) FDHD Floppy Drive High Density FDIC Federal Deposit Insurance Corporation [US Government] FDISK Fixed Disk FDM Frequency Division Multiplexing FDM Frequency-Division Multiplexing FDMA FDM Access FDP Field Development Program FDR Fast Dump Restore FDR Franklin Delano Roosevelt [US President] FDX Full DupleX FE Finite Element FEA Finite Element Analysis FEBE Far End Block Error (IOM2 Monitor Message) FEC Forward Error Correction FECC Front End Communication Computer FED Far End Data FEDSIM FEDeral Systems Integration and Management center FEFO First-Ended, First-Out FEM Front-End Machine FEMA Federal Emergency Management Agency FEMF Foreign Electro-Motive Force FEMF Foreign EMF (a.k.a. Cross Battery) [telephony] FEMGEN Finite Element MEsh GENerator FEMVIEW Finite EleMent analysis results VIEWing program FEP Front End Processor FEP Front-End Processor FEPC Fair Employment Practices Commission FEPG Federal Engineering Planning Group (of FNC under EOWG, originally of FRICC) FEPS Facility and Equipment Planning System FERS Federal Employees Retirement System FET Federal Excise Tax FET Field Effect Transistor FET Field Effect Transistor FET Field-Effect Transistor FEV Far End Voice FF Flip-Flop + Form Feed FF Form Feed FFA Future Farmers of America FFT Fast Fourier Transform FFT Fast Fourier Transform FGA Feature Group A FG-A Feature Group A [telephony: Line Side term. for LD carriers] FGB Feature Group B FG-B Feature Group B [telephony: Trunk Side term. for LD carriers (aka ENFIA B), 950 service] FGC Feature Group C FGCLG Fortran level G, Compile, Link and Go [IBM] FGD Feature Group D FG-D Feature Group D [telephony:Trunk Side term. for LD carriers, 1+ service] FHA Federal Home Administration FHA Future Homemakers of America FHCLG Fortran level H, Compile, Link and Go [IBM] FIB Focused Ion Beam FIB Forward Indication Bit (SS7) FICA Federal Insurance Contributions Act FIDO Fog Investigation Dispersal Operation FIF Fractal Image Format FIFO First In, First Out FIFO First In First Out (as in registers and buffers) FIFO First In First Out (storage) FIFO First-In, First-Out FIFO First-In First-Out ['queue'] FILEID cms FILE IDentifier FILO First In Last Out (see also FIFO) FILO First-In, Last-Out FIMS Forms Interface Management System FIN Facility Information Message 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 Processing Standards FIR Finite Impulse Response FIR Finite Impulse Response FIRMR Federal Information Resource Management Regulation FIS Floating-point Instruction Set FISU Fill In Signal Unit (SS7) FIT Federal Information Technologies, inc. FIX Federal Inter-agency eXchange [network] FJ Frame Jump (C/I channel code) FL Florida FLACC Full Level Algol Checkout Compiler FLC Ferro-electric Liquid Crystal FLD Field FLHE calc's steady state & transient solution for thermal problems FLL Fixed Loss Loop [telephony] FLOP FLoating point Operations Per Second FLOPS Floating Point Operations Per Second FLPL A Fortran-compiled List Processing Language FLRA Federal Labor Relations Authority FM cms Filemode FM Frequency Modulation FMAC Facility Maintenance And Control FMB Federal Maritime Board FMCS Federal Mediation and Conciliation Service FMM Finite Message Machine FMR Follow Me Roaming [telephony] FMS Financial Management Service (Treasury Dept) FMS Flexible Manufacturing System FMS Forms Management System FMS Forms Management System FMT Format FN cms Filename FNBE Far and Near end Block Error (IOM2 Monitor Message) FNC Federal Networking Council (formerly FRICC) [US Government, under OSTP] FNPA Foreign Numbering Plan Area FNT Font FO Foreign Office FO Forward Observer FOAC Federal Office Automation Center FOB Free On Board FOC Fiber Optic Communications FOC Free Of Charge FOCAL Fortran-like language on early DEC computers FOCUS an interactive symbolic debugging tool for FORT3 programs [GEC] FOCUS Forum of Control Data Users FOG First Osborne Group FOIA Freedom Of Information Act FOIMS Field Office Information Management System FOIRL Fiber Optic Inter Repeater Link [IEEE] FON Fiber Optics Network .FON Font (file name extension) .FON Phone Directory (file name extension) .FON Phone (file name extension) FOOBAR See FUBAR FOR Free On Rail .FOR FORTRAN source code (file name extension) FORCS Faa's Operational Reporting Communication System FORD Fix Or Repair Daily FORD Found On Road Dead FORTH (Programming Language) FORTRAN FORmula TRANslation FORTRAN Formula Translator (Programming Language) FOS Fibre Optics & Optoelectronics Scheme [DoI] FOSE Federal Office Systems Exposition FOSE Federal Office Systems Exposition FOSSIL Fido/Opus/Seadog Standard Interface Layer FOT Forward Transfer (SS7: in ISUP) FOT Free On Truck FOV Field Of View FP Functional Protocol FPA Floating Point Accelerator FPA Floating Point Accumulator FPA Fortran Program Analset FPC Fish Protein Concentrate FPC Frequency Comparison Pilots FPE Floating Point Engine FPGA Field Programmable Gate-Array FPHA Federal Public Housing Athority FPHA Federal Public Housing Authority FPLA Field Programmable Logic Array (see PLA) FPLA Field Programmable Logic-Array FPLA Field-Programmable Logic Array FPM Feet Per Minute FPO Feild Post Office FPO Field Post Office FPO Fleet Post Office FPP Fixed Path Protocol + Floating Point Processor FPP Floating Point Processor FPS Fast Packet Switching FPS Feet Per Second fps Feet Per Second FPS Floating Point Systems [the Company] FPS Frames Per Second FPU Floating Point Processor Unit FPU Floating Point Unit FQDN Fully Qualified Domain Name [Internet] FR Flat Rate FR80 Microfilm recorder available at RAL FRAC Frame Aligner Circuit PEB2030 FRACTAL FRACTional dimensionAL FRAG Fragment + Fragmentation FRAM Ferroelectric Random-Access Memory FRED Frame Editor FRED Fred Resembles Emacs Deliberately FRG Federal Republic of Germany (West Germany) FRG Federal Republic of Gernmany (West Germany) FRICC Federal Research Internet Coordinating Committee (now FNC) FRJ Facility Rejected Message (SS7: in ISUP) FRMR Frame Reject (LAP-D Response) FROG Free Rocket Over Ground FRPG Fantasy Role Playing Game FRPI Flux Reversals Per Inch FRQ Facility Request Message FRR Functional Recovery Routines FRS Federal Reserve System FRS Flexible Route Selection .FRS WordPerfect Graphics Driver (file name extension) FS File Separator FSC Frame Synchronization Clock (IOM2) FSD File System Driver [OS/2] FSF Free Software Foundation FSK Frequency Shift Keying FSK Frequency Shift Keying FSK Frequency-Shift Keying FSLIC Federal Savings and Loan Insurance Corporation FSN Forward Sequence Number FSS Federal Supply Service FSW Forward Swept Wings FT cms FileType FT Foot F/T Full Time FTAM File Transfer, Access and Management FTAM File Transfer and Access Method FTAM File Transfer And Management (ISO upscale FTP) FTC Federal Trade Commission FTF File Transfer Facility [ICL] FTG Final Trunk Group FTL Faster Than Light FTP File Transfer Protocol [especially TCP/IP, Internet] FTP77 File Transfer Protocol to 1977 standard FTP80 File Transfer Protocol to 1980 standard FTPQ File Transfer Protocol ('Q' end) FTS Federal Telecommunication System FTS Federal Telecommunications System [US Government] FTS Federal Telephone System [telephony] FTS Flight Telerobotic Servicer [Space] FTZ (Ger) Central Telecom Technical Office (of DBP) FUBAR Fucked Up Beyond All Recognition FUNC Function FW Fringeworthy FWD Front Wheel Drive FWHM Full Width at Half Maximum FX Foreign eXchange [telephony] FY Fiscal Year FYI For Your Information G Gravity GA Gamblers Anonymous GA General Assembly GA General Automation [the Company] GA General Availability GA General Average GA General of the Army GA Georgia GAAP Generally Accepted Accounting Principles GAAP Generally Accepted Accounting Principles GAAS GAllium ArSenide (GaAs) GAB Group Audio Bridging [telephony] GAELIC VLSI design package [Compeda] Gaia Earth's self-sustaining Biosphere GAL Generic Array Logic GAN Global Area Network GANDALF Canadian company which manufactures data comm's equipment GAO General Accounting Office [US Government] GAP (EC) Group of Analysis and Provision (for ONP) GAR Grand Army of the Republic GATT General Agreement on Tariffs and Trade GAW Guaranteed Annual Wage GAW Guarenteed Annual Wage GB Gangbusters GB Giga Bytes (or Bits), 1024 x 1024 x 1024 Gb Gigabit (1,000 megabits) (One Billion Bits of Information) GB GigaByte GB Gigabyte (1,000 megabytes) (One Billion Characters of Information) GB Great Britain GBIP General Purpose Interface Bus GBS Group Bridging Service GC Garbage Collection (LISP) GC Gas Chromatograph (or Chromatography) GC Group Card GCA Ground Controlled Approach GCC Gnu C Compiler GCD Greatest Common Multiple GCD Ground Controlled Descent GCHQ Government Communications Headquarters [UK] GCI General Circuit Interface (IOM/U(k0)-Interface) GCL Graphics Command Language GCM General Court Martial GCR General Configuration Register GCR Group Code Recording GCR Group Code Recording [mag tape] GCR Group-Coded Recording (magnetic tape, 6250 bpi) GCS Group Control System GCT Greenwich Civil Time GDA Global Data Area GDB Gnu DeBugger GDDM Graphics Data Display Manager GDG Generation Data Group GDI Graphics Device Interface GDS Geometrical Design Scheme [ARC] GDT Geometric Dimensioning and Tolerancing + Global Descriptor Table GE General Electric [corporate name, USA] GEC General Electric Company Plc. [UK] GEDIT George 3 EDITor [GEC] (it's EDIT's "real" name) GEISCO General Electric Information Services COmpany GEM Graphics Environment Manager GEM Graphics Environment Manager (DRI Program) GENIE General Electric Network for + Information Exchange GENSTAT GENeral STATistical program GEO Geosynchronous Earth Orbit [Space] GEORGE GEneral Organisational Environment [?] [ICL] GEOS Graphic Environment Operating System [Geoworks] Ger German GEROFF text formatter on SERCnet GEC computers GET Get Execute Trigger GEXEC Geologist's or General EXECutive [NERC] GHQ General HeadQuarters GHz Giga HertZ (unit of frequency, 1,000,000,000 cycles per second) GHZ GigaHertZ GHZ Gigahertz GI Galvanized Iron GI Gastro Intestinal (as in upper GI) GI General Issue GI Government Issue GID Group ID GIF Graphics Interchange Format .GIF Graphic Interchange Format (file name extension) GIGO Garbage In Garbage Out GIGO Garbage In, Garbage Out GIGO Garbage-In Garbage-Out GIMMS general-purpose geographical processing system GIN Graphics INput GINO Graphical INput & Output [CADC] GINO-F Graphical INput & Output - Fortran [CADC] GIS Geographical Information System GISS Goddard Institute for Space Studies GIX Global Internet Exchange [Internet] GKS Graphical Kernal System GKS Graphical Kernel Standard GKS Graphics Kernel System G/L General Ledger GLIM Generalised LInear Modelling GLM General Linear Models .GLY Glossary (file name extension) [Microsoft Word] GM Game Master GM General Manager GM General Motors [corporate name] GM Guided Missile GMBH Gesellschaft Mit Beschraenkter Haftung GML Generalised Markup Language GMT Greenwich Mean Time GMT Greenwich Mean Time GND GrouND GND System Ground GNP Gross National Product GNSS Global Navigation Satellite Systems (generic term for GPS and Glonass) GNU GNU's Not Unix GNU Gnu's Not Unix (operating system) GOC Graphics Option Controller [Sigma] GOES Geostationary Orbiting Environmental Satellites GOS Grade Of Service GOSIP Government Open Systems Interconnection Profile GOSIP Government Open Systems Interconnection Profile (calls for government procurement of ISO/CCITT products) GOSIP Government OSI Profile GP Gas Plasma + General Purpose GP General Practitioner GP Group Processor GPF General Protection Fault GPI Graphics Programming Interface GPI Graphics Programming Interface GPIA General Purpose Interface Adaptor GPIB General Purpose Instrumentation Bus [IEEE488 standard] GPIB General Purpose Interface Bus GPIB General Purpose Interface Bus GPIB General-Purpose Interface Bus GPL GNU General Public Licence GPO General Post Office GPO Government Printing Office GPPC General Purpose Power Controller PSB2121 GPS Global Positioning System GPS Global Positioning System [Space] GPSS General Purpose Simulation System GPSS General Purpose Systems Simulator (language) GQ General Quarters GRA GRS Acknowledgement GRB Gamma Ray Burst(er) GRD GRounD GRE Graphics Engine GREP Global Regular Expression Print, g/re/p, (UNIX command) GREP Global Regular Expression Print [UNIX] GREP Global Regular Expression Print (UNIX command) .GRF Graph (file name extension) GRO Gamma Ray Observatory [Space] GRP MOD GRouP MODulator .GRP Group (file name extension) GRS Circuit Group Reset (SS7: in ISUP) GS General Schedule GS Glide Slope GS Group Separator GSA General Services Administration [US Government] GSA Girl Scouts of America GSAT General telephone and electronics SATellite corporation GSBCA General Services administration Board of Contract Appeals GSFC Goddard Space Flight Center (Greenbelt, MD) [NASA] GSM Global System for Mobile phones (digital cellular telephony in Europe, and elsewhere) GSM Global System Mobile GSM Groupe Speciale Mobile (Committee Designing preceding) GSPC Graphics Standards Planning Committee [ACM] GSTS Ground-based Surveillance and Tracking System GT Gross Ton GTC General Telephone Company GTE General Telephone and Electric [Corporate name] GTE General Telephone Electronics GTEI Global TEI GTSI Government Technology Services, inc. GTT Global Title Transmission GUG GEC User Group [SERC, now RAL-Supported GUG] GUI Graphical User Interface GUI Graphical User Interface GVP Global Virtual Peripheral [GEC] GW Gamma World GW Gate Way GW-BASIC Gee Whiz BASIC GWEN Ground Wave Emergency Network GWY Gateway H Harn H Height H Hold state (in EOC) .H Header (file name extension) [C] H- High- HAC Hands-Free Add-On Circuit (for speakerphone) PSB45030 HACD Home Area Customer Dialing HACMP High Availability Cluster Multi-Processing [IBM] HAL Hard Array Logic HAL Heuristically Programmed Algorithmic (computer) + [from 1968 film "2001: A Space Odyssey"] HAL Heuristically programmed ALgorithmic computer (2001) HAL Heuristically programmed ALgorithmic computer [movie 2001] HAL House Programmed Array Logic HAM Hold And Modify HARM High-speed Antiradiation Missile HASP Houston Asynchronous Spooling & Priority [IBM] HASP Houston Automatic Spooling Priority (System) HASP Houston Automatic Spooling Program [IBM] Hb HemogloBin HBA Host Bus Adapter HBM Her British Majesty; His British Majesty HBO Home Box Office HC Holy Communion HC House of Commons HCFA Health Care Financing Administration HCFC hydrochlorofluorocarbon [chemical] HCL High Cost of Living HCMOS High performance CMOS HCSDS High-Capacity Satellite Digital Service HCTDS High-Capacity Terrestrial Digital Service HD Hard Disk HD Hard Disk + High Density HD Heavy Duty HDA Head Disk Assembly HDA Head Disk Assembly (in winchester disk drives) HDB3 High-Density Bipolar 3 (CEPT PRI) HDBV Host Data Base View HDCD High Definition Compatible Digital HDI Head to Disk Interference HDL High Density Lipoprotein HDLC High-Level Data Link Control HDLC High-level Data Link Control [IBM network] HDR Header HDSC High Density Signal Carrier [DEC] HDSL High-rate Digital Subscriber Link HDTV High Definition Television HDTV High Definition Television HDW Hardware HDX Half DupleX HE His Eminence; His Excellency HEAO High Energy Astronomical Observatory [satellite] HEAP Home Energy Assistance Program HEDM High Energy-Density Matter [Space] HEHO High End Hop Off HEL High Energy Laboratory HEMP Help End Marijuana Prohibition HEO High Earth Orbit [Space] HEP High Energy Physics (Division of RAL) HERC Hercules HERO Hazards of Electromagnetic Radiation to Ordnance HEX Hexadecimal HF High Fantasy HF High Frequency (3-30MHz) HFE Human Factors Engineering HFR Hardwara Failure Rate HFS Hierarchical File System HGA Hercules Graphics Adapter HGCP Hercules Graphics Card Plus HH Hour HI Hawaii HI High Impedance (C/I channel code) HI Highway Interrupt HIC Hybrid Integrated Circuit HIFD High-Density Floppy Disk HIIPS Hud Integrated Information Processing Services HIL Human Interface Link [HP] HIPO Hierarchical Input Process Output [IBM] HL IT Siemens Semiconductors (HL), Info Technics (IT) HLC Heavy Lift Capability [Space] HLCO High Low Close Open HLL High Level Language HLL High-Level Language HLLAPI High Level Language Application Programming Interface .HLP Help (file name extension) HLQ High Level Qualifier HLS Hue Lightness Saturation [as in colour graphics] HLS Hue, Luminance, Saturation (color model) HLT Halt HLV Heavy Lift Vehicle [Space] HMA High Memory Area [Microsoft] + Hub Management Architecture HMOS High Density Metal Oxide Semiconductor + High Speed Metal Oxide Semiconductor HMOS High performance Metal Oxide Semiconductor (see MOS) HMOS High performance MOS HMOS High preformance Metal Oxide Semiconductor (see MOS) HMS His/Her Majesty's Ship HMSO Her Majesty's Stationery Office [UK] HMT His/Her Majesty's Transport HNPA Home Numbering Plan Area [telephony] HNS Hospitality Network Service HOBIC HOtel Billing Information Center HOBIS HOtel Billing Information System HOL Higher Order Logic HOLD Call Hold (I.253 B) HOTOL HOrizontal Take-Off and Landing HP Hewlett Packard, Inc. [Corporate name] HP Hewlett-Packard (Company) HP High Pressure HP Higher Power (sort of an AA "in" term, usually God) HP Hit Points [role-playing games] HP HorsePower HPCC High Performance Computing and Communications HPDJ Hewlett-Packard Desk Jet HPFS High-Performance File System HPG Hewlett-Packard Graphics HPGe High Purity Germanium HPGL Hewlett-Packard Graphics Language HPIB Hewlett Packard Interface Bus [IEEE488] HPIB Hewlett-Packard Interface Bus HPLJ Hewlett-Packard Laser Jet HPL/T High-Productivity Languages/Tools HPO High Performance Option HPPA Hewlett-Packard Precision Architecture HPPI High Performance Parallel Interface HQ HeadQuarters HQW High Quality Writer module [on some SERCnet GEC computers] HR House of Representatives HRG High Resolution Graphics HRH Her Royal Highness HRH His Royal Highness HRIS Human Resource Information System HRMS Human Resource Management System HS High School HS High Speed HSB Hue, Saturation, Brightness HSC High Speed Channel HSCC High Level Serial Communication Controller SAB82520 HSCX extended HSCC SAB82525 HSM Hierarchical Storage Manager HSP High Speed Printer HSR Hardware Segment Register [GEC] HSSDS High-Speed Switched Digital Service HST Hawaiian Standard Time HST High Speed Technology [US Robotics] HST Hubble Space Telescope [NASA] .HST History (file name extension) .HST Host (file name extension) HSV Hue Saturation Value HT High Tension (as in electric power transmission) HT Horizontal Tabulator HTI Highway Transfer Interrupt HTK Hits To Kill HU High Usage HU High-Usage trunk HUAC House Unamerican Activities Committee HUD Heads Up Display HUD Housing and Urban Development [US Government] HUT Hopkins Ultraviolet Telescope HUTG High Usage Trunk Group H/V Horizontal/Vertical HVAC Heating, Ventilation, and Air Conditioning HVP Horizontal & Vertical Position HW PCM Highway H/W Hardware HW2000 Highway 2000 HWCP Hardware Code Page HWD Height-Width-Depth HWM High-Water Mark .HYP Hyphenation (file name extension) HZ HertZ HZ Hertz Hz HertZ (unit of frequency, cycles per second) HZ Hz, Hertz, cycles per second I Information (LAP-D Command) I- Information (numbered I-Frames) IAB Internet Activities Board IAB Internet Activities Board [Internet] IAEA International Atomic Energy Agency IAL International Algebraic Language (ALGOL was first called IAL) IAM Initial Address Message (SS7: in ISUP) IANA Internet Assigned Numbers Authority (IANA@ISI.EDU) IANA Internet Assigned Numbers Authority [Internet] IATA International Air Transport Association IB Instruction Buffer IBC Instrument Bus Computer IBC ISDN Burst Transceiver Circuit PEB2095 IBFN (Ger) integrated high bandwith long distance network IBM Ingrained Batch Mentality IBM International Business Machines [Corporate name] IBM International Business Machines (Corporation) IBM Itty Bitty Machines IBM-GL IBM Graphics Language IBN Integrated Business Network IBT Illinois Bell Telephone IC Imperial College, University of London IC Incoming Call (X.25) IC Independent Carrier IC Input Circuit + Integrated Circuit + Interrupt Controller IC Integrated Circuit IC Inter-exchange Carrier IC Interexchange Carrier [telephony] (see also IEC, IXC) IC Inter-LATA Carrier ICA Intra-application Communications Area ICAN Individual Circuit ANalysis ICAO International Civil Aviation Organization ICAS Intel Communicating Applications Specifications ICB Interstate Computer Bank ICBL Inter Chapter Branch and Link instruction [GEC] ICBM Intercontinental Ballistic Missile ICBR Inter Chapter BRanch instruction [GEC] ICC Interstate Commerce Commission ICC ISDN Communications Controller PEB2070 ICCC Imperial College Computing Centre ICCP Institute for the Certification of Computer Professionals ICD Interactive Call Distribution ICE In-Circuit Emulator ICE In-Circuit Emulator [Intel] ICF Interactive Computing Facility [SERC] ICFC Industrial & Commercial Finance Corporation ICFC Interactive Computing Facility Committee [SERC] ICI Imperial Chemical Industries ICJ International Court of Justice ICL Interface Clear ICL International Computers Ltd. ICLID Individual Calling Line ID ICM Integrated Call Management ICMP Internet Control Message Protocol ICMP Internet Control Message Protocol [Novell] .ICO Icon (file name extension) ICOM (Taiwan) Integrated Communication iCOMP Intel Comparative Microprocessor (index) [Intel] ICP Integrated Channel Processor ICP Integrated Channel Processor ICP Inventory Control Points ICR Intelligent Character Recognition ICRC International Cosmic Ray Conference ICS Intuitive Command Structure ICSC Inter-LATA Customer Service Center ICST Imperial College of Science & Technology ICT International Computers & Tabulators [now ICL] ID Idaho ID IDentification ID Identification + Identifier IDA (GB) Interated Digital Access (B64+B8+D8) IDA Integrated Digital Access IDA Intelligent Disk Array IDA Intelligent Drive Array IDA Intercommunication Data Areas IDA International Development Association IDAPI Integrated Database Application Programming Interface IDDD International Direct Distance Dial [telephony] IDE Imbedded Drive Electronics IDE Integrated Development Environment [Borlund] IDE Integrated Drive Electronics IDE Integrated Drive Electronics [computer disk drive] IDE Intelligent Drive Electronics IDE Interactive Design and Engineering IDE Interactive Development Environments, inc IDE Interface Design Enhancement IDEC ISDN D-channel Exchange Controller PEB2075 IDF Intermediate Distributing Frame [telephony] IDI Initial Domain Identifier (ISO 7498) IDIV Integer Divide IDMS Integrated Data Base Management System IDMS Integrated Database Management System IDN (Ger) integrated data network IDP Integrated Data Processing IDPC Integrated Data Protocol Controller SAB79C401 IDRIS a Unix related operating system [Whitesmiths] IDS Integrated Data Storage [Honeywell/GE] IDS Internal Directory System IDT Interrupt Descriptor Table IDV Interlibrational Derived Vehicle [Space] IDVC Integrated Data/Voice Channel .IDX Index (file name extension) IE Indo-European ie. Latin, "id est": "that is" IEC Information Engineering Committee [SERC] IEC Inter-Exchange Carrier [telephony] (see also IC, IXC) IEC International Electrotechnical Comission IEC ISDN Echo Cancellation Circuit IEC-P (old name of IEC-Q3) IEC-Q1 IEC for 2B1Q PEB2091 IEC-Q2 IEC-Q specially for LT and NT1 (without microprocessor) PEB2092 IEC-Q3 IEC-Q with parallel processor interface (for DAML) PEB2093 IEC-T IEC for 4B3T PEB2090 IEE Institute of Electrical Engineers (UK) IEE Institute of Electrical Engineers [UK] IEE Institution of Electrical Engineers IEEE Institute of Electrical & Electronics Engineers, Inc. [US] IEEE Institute of Electrical and Electronic Engineers IEEE Institute of Electrical and Electronics Engineers IEEE Institute of Electrical and Electronics Engineers IEEE488 Equipment interfacing standard [GPIB] IEEE696 Standard derived from S100 bus IEEE796 Standard derived from Multibus IEEE802 Local area network standard ['Ethernet'] IEEE896 Standard derived from VMEbus (? - still in discussion) IEF Information Engineering Facility IEPC ISDN Exchange Power Controller PEB2025 IETF Internet Engineering Task Force IETF Internet Engineering Task Force IEU Instruction Execution Unit = one million instructions [GEC] IF Intermediate Frequency (stage) I/F Interface IFB Invitation For Bids IFC International Finance Corporation IFC International Freighting Corporation IFD Image File Directory IFF Identification - Friend or Foe IFF IF and only iF IFF Interchange File Format IFG Incoming Fax Gateway IFIP International Federation for Information Processing IFLA International Federation of Library Associations IFRB International Frecuency Registration Board IFRPS Intercity Facility Relief Planning System IFS Installable File System [OS/2] IFS (Switzerland) integrated telecom service IGA Integrated Graphics Array IGC Integrated Graphics Controller IGES Initial Graphics Exchange Standard IGS Idenitfy Graphic Subrepertoire (Teletex) IGS Institute of Geological Sciences IGY International Geophysical Year IHP Indicated HorsePower IHS Integrated Hospital Support IIA Information Industry Association IIE Institute of Industrial Engineers IIF Immediate IF IIHF International Ice Hockey Federation IIL Integrated Injection Logic IIN Integrated Information Network IIR Immediate Impulse Response IIS Interactive Instruction System [IBM] IKBS Intelligent Knowledge Based Systems IKZ (Ger) pulse dial ILC ISDN Link Controller ILO International Labor Organization ILS Instrument Landing System ILV Industrial Launch Vehicle [Space] IM Input MUX IM Interface Module I&M Installation & Maintenance IMAS Integrated Mass Announcement System IMC Integral Multiplexer Channel [GEC] IMC IOS Mailbox Control IMDS Image Data Stream (format) [IBM] IMF International Monetary Fund IMG Image IMHO In My Humble Opinion [net jargon] IMM Input Message Manual IMMU IOS Memory Management Unit IMP Interface Message Processor IMP Interface Message Processor [ARPA] IMP Interface Message Processor (ARPAnet) IMP Interface Message Processor [ARPANET/MILNET] (replaced by PSN) IMP Interpersonal Messaging Protocol (X.420: P2) IMPA Intelligent Multi-Port Adapter [DCA] IMPL Initial MicroProgram Load[MVS] IMS Information Management System + Intermediate Maintenance Standards IMS Interactive Management System [IBM] IMSL International Mathematical Subroutine Library IMSL International Mathematics and Statistics Library IMT Inter-Machine Trunk IMTS Improved Mobile Telephone Service IMUL Integer Multiply IN Indiana IN Input IN Intelligent Network INADS INitialization and ADministration System [telephony] INC Increment INC InterNational Carrier INF Information (SS7: in ISUP) .INF Information (file name extension) INFO Database management system marketed by HENCO INC. .INI Initialize (file name extension) INISH INItialisastion deck INIT INITial operator [GEC] INIT Initialize INL Inter Node Link INM Integrated Network Management INN Inter Node Network INR Information Request (SS7: in ISUP) INRA Iesus Nazerenus Rex Iudaeorum (Jesus of Nazareth, King of the Jews) INRIA Institut National de Recherche en Informatique et Automatique INS Immigration and Naturalization Service INS Input String INS (Japan) Information Network System (B64+B16+D8) INSTITUTE - INSTITUTE's Name Shows That It's Totally Unrelated To EMACS INT Integer + Internal + Interrupt INT Interrupt (C/I channel code) INTA Interrupt Acknowledge INTAP INteroperability Technology Association for information Processing INTEL American company which manufactures solid-state electronics INTELSAT - INternational TELecommunications SATellite consortium INTO Interrupt if Overflow occurs INWATS INward Wide Area Telephone Service [telephony] INWG International Network Working Group IO Input/Output (sometimes I/O) IO Inward Operator I/O Input/Output I/O Input/Output IOB Input/Output Block [IBM] IOC Input/Output Controller IOC Integrated Optical Circuit IOC International Operating Center [telephony, US] IOCB Input/Output Control Block [GEC] IOCC International Overseas Completion Center IOCS Input/Output Control System IOCTL Input/Output Control IOD Identified Outward Dialing IOM ISDN-Oriented Modular (Architecture and Interfaces) IOM2 extended IOM IOOF International Order of Odd Fellows IOP Input-Output Processor IOP Input/Output Processor IOPL Input/Output Priviledge Level IOS Institute of Oceanographic Sciences [NERC] IOS ISDN Operational Software SIPB6013 IOSGA Input/Output Support Gate Array IOT Inter-Office Trunk IOU I owe you IOW In other words IOW Isle of Wight, UK IP Information Provider [telephony] IP Innings Pitched IP Instruction Pointer + Internet Protocol IP Intermediate Point IP Internet Protocol (TCP/IP, DOD) IPABX ISDN PABX IPAC ISDN PC Adapter Circuit PEB21?? IPAT ISDN Primary Access Transceiver PEB2235 IPB SIPB IPBC IOM2 PBC (old name for EPIC) IPC Instructions Per Clock + Interprocess Communication IPC Inter-Process Communication IPC Interprocess Communication IPC InterProcessor Communication IPCS Interactive Problem Control System IPCS IOS Process Control System IPE Integrated Programming Environment IPF Information Presentation Facility IPL Information Processing Language [as in IPL-II, IPL-III, IPL-V] IPL Information Programming Language IPL Initial Program Load + Initial Program Loader IPL Initial Program Load [GEC, IBM] IPLAN Integrated PLanning And Analysis IPM Impulses Per Minute IPM Inter-Process Message [GEC] IPM Interruptions Per Minute IPMS InterPersonal Message Services IPP IOS Protocol Part IPS Information Processing Standards IPS Installation Performance Specification IPSE Integrated Project Support Environment IPSE Integrated Project-Support Environment IPSS International Packet Switch Stream Service IPU Internal Processing Unit IPX Integrated Packet eXchange IPX Internetwork Packet Exchange [Novell] IQ Intelligence Quotient (see EQ) IQL Interactive Query Language IR Index Register IR Infra-Red IRA Individual Retirement Account IRA Irish Republican Army IRAS Infrared Astronomical Satellite IRBM Intermediate Range Ballistic Missile IRC International Record Carrier IRC Internet Relay Chat [Internet] IRDS Information Resource Dictionary Standard IRDS InfraRed Detection Set IRE Institute of Radio Engineers (old name for the now IEEE, which see) IRET Interrupt Return IRL Interactive Reader Language + Inter-Repeater Link IRLED Infrared Light Emitting Diode IRM Information Resource Management IRM Information Resources Management IRMS Information Resources Management Service IROR Internal Rate Of Return IRPC ISDN Remote Power Control PSB2120 IRQ Interrupt Request IRS Internal Revenue Service IRTF Internet Research Task Force IRX Information Retrieval Experiment IS Information System + Interrupt Status IS Information Systems IS International Standard (Beyond the DIS Stage) IS Interrupt Set ISA Industry Standard Architecture ISA Industry-Standard Architecture ISAC-P ISDN Subscriber Access Controller (S Bus, PABX, U) PEB20950 ISAC-S ISDN Subscriber Access Controller (S Interface ICC+SBC) PEB2085 ISAM Indexed Sequential Access Method [IBM] ISAM Indexed Sequential-Access Management/Method ISBD International Bibliographic Description ISC Information Services Center ISC Input Spooling Control [GEC] ISC Instruction Set Computer ISC International Switching Center ISCH Interstitial-Cell-Stimulating Hormone (same as LH) ISD Image Section Descriptor + Instructional Systems Design ISDN Integrated Services Digital Network ISDN Integrated Services Digital Network [telephony] ISDT Integrated Systems Development Tool ISEE International Sun Earth Explorer (usually ISEE-3) ISF Information Systems Factory ISFUG Integrated Software Federal User Group ISI Information Sciences Institute ISI Internally Specified Index ISIS Integrated Systems and Information Services ISL Interactive System Language ISLM Integrated Services Line Module ISLU Integrated Services Line Unit ISM ISDN Switching Module ISN Information Systems Network ISN Integrated Systems Network ISO International Standards Organisation ISODE ISO Development Environment ISOO Information Security Oversight Office ISO/OSI International Standards Organization/Open Systems Interconnection (model) ISP Instruction Set Processor ISP Intermediate Service Part ISP Internet Service Provider [Internet] + Interrupt Status Port ISPBX Integrated Systems PBX ISPC International Signaling Point Code (SS7) ISPF Interactive Structered Programming Facility ISPF Interactive System Programming Facility ISPL Input SPooLer [GEC] ISPM International Solar Polar Mission ISR Information Storage and Retrieval + Interrupt Service Routines ISR Institute of Snow Research ISRG Independent Space Research Group ISS Integrated Switching System ISSN Integrated Special Services Network ISSS ISDN Supporting System ISTA Interrupt Status Register ISUP Integrated Services User Part ISUP ISDN User Part (SS7: Q.76X) ISV Independent Software Vendor ISV Independent Software Vendor IT Inactivity Test (SS7: in SCCP) IT Industrial Technology IT Information Technology ITAC ISDN Terminal Adaptor Circuit PEB2110 ITB Information Technology Branch + Intermediate Text Block ITC International Typeface Corporation ITC Inter-Task Communication ITEC ITeC, Information Technology Centre [part of the YTS] ITP Interactive Terminal Protocol ITS Incompatible Timesharing System ITS Institute of Telecommunication Science ITSO Incoming Trunk Service Observation ITSTC Information Technology Steering Committee ITT International Telegraph & Telephones ITT International Telephone and Telegraph ITU International Telecommunication Union ITU International Telecommunication Union ITU International Telecommunic