=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Heath's Telecommunications & Computer Acronym & Abbreviation Reference Compiled & Written By Heath D. Alberts =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= ( There Are Currently 1501 Entries ) 3WC = 3-Way Calling AAD = Analog Alignment Diskette AAL = ATM Adaption Layer ABC = Atanasoff-Berry Computer ABE = Agent Building Environment ABIOS = Advanced Basic Input / Output System ABR = Available Bit Rate ABS = Absolute AC = Alternating Current ACAD = AutoCad ACC = Accumulator Accuracy Control Charachters ACF = Advanced Communications Function ACK = Acknowledgement ACL = Access Control List ACPI = Advanced Configuration and Power Interface ACS = Automatic Class Selection ADC = Analog Digital Converter ADCCP = Advanced Data Communications Control Procedures ADM = Add / Drop Multiplexers ADP = Automated Data Processing ADPCM = Adaptive Differential Pulse Code Modulation ADSC = Adobe Document Structuring Conventions ADSI = Active Directory Services Interface ADSL = Asymmetric Digital Subscriber Line AF = Auxillary-carry Flag AFC = Automatic Frequency Control AFIS = Automated Fingerprint Identification System AFP = AppleTalk File Protocol AGC = Automatic Gain Control AGIS = Apex Global Information Services AGP = Accellerated Graphics Port AI = Artificial Intelligence AIMUX = ATM Inverse Multiplexing AIN = Advanced Intelligent Network AIS = Alarm Indication Signal AIX = Advanced Interactive Executive AJAX = Asynchronous Javascript And XML AKM = Apogee Kick Motor ALAT = Advanced Load Address Table ALB = Advanced Load Balancing ALC = Airline Link Control Application Load Certificate Arithmetic & Logic Circuits Automatic Level Control ALDC = Adaptive Lossless Data Compression ALE = Account Level Equivalence Address Latch Enable Application Launch & Embedding Application Linking Enabling ALEC = Alternative Local Exchange Carrier ALEP = Advanced Language Engineering Platform ALG = Application Layer Gateway ALGOL = Algorithmic Language ALI = Acer Laboratories, Inc. ALIBI = Adaptive Location of Internetworked Bases of Information ALICE = Artificial Linguistic internet Computer Entity ALINK = Active Link ALIVE = Artificial Life Interactive Video Environment ALIWEB = Archie-Like Indexing on the Web ALM = Application Life-Cycle Management Asynchronous Line Multiplexer ALN = Asynchronous Learning Network ALP = Application Layer Program Application Layer Protocol Automatic Language Processing ALR = Advanced Logic Research ALSA = Architectures of Large Systems of Agents ALT = alternate ALU = Arithmetic Logic Unit AM = Amplitude Modulation AMA = Automatic Message Accounting AMASS = Archival Management And Storage System AMD = Active Matrix Display Advanced Micro Devices AME = Advanced Metal Evaporation AMG = All Music Guide AMHA = Advanced Macro Heuristic Analysis AMI = Alternative Mark Inversion American Megatrends, Inc. Application Messaging Interface AMIBIOS = American Megatrends, Inc. Basic Input / Output System AML = ACPI Machine Language AMLCD = Active Matrix Liquid Crystal Display AMMA = Advanced Memory Management Architecture AMON = ATM Monitoring AMP = Asymmetric MultiProcessing Attached Media Processor AMPS = Advanced Mobile Phone System AMQRS = Audio Master Quality Recording System AMR = Adaptive Multi-Rate Audio Modem Riser AMS = Access Method Services Advanced Microcomputer Systems AMSTRAD = Alan Michael Sugar Trading ANA = Automatic Number Announcement ANDF = Architecture-Neutral Distribution Format ANI = Animated Cursor Automatic Number Identification ANN = Annotations Artificial Neural Network ANS = Advanced Networking Services American National Standard ANSI = American National Standards Institute ANT = Advanced Network Tools Another Neat Tool ANX = Automotive Network Exchange AO = Analog Output AO/DI = Always On / Dynamic ISDN AOCE = Apple Open Collaborative Environment AOCN = Administrative Operating Company Number AOE = Application Operating Environment AOL = Alert On Loan America On-Line AOP = Apsect-Oriented Programming Association of Online Professionals AOS = Add Or Subtract AOSD = Aspect-Oriented Software Development AOT = Ahead Of Time AOW = Asia & Oceania Workshop AP = Access Point Access Provider Application Processor Application Protocol APA = Adaptive Packet Assembly All Points Addressable Arithmetic Processing Accelerator APAR = Authorized Program Analysis Report APC = American Power Conversion APCUG = Association of Personal Computer User Groups APDU = Application Protocol Data Unit APE = Application Performance Explorer APF = Apple Filing Protocol Automated Purposing Framework API = Application Program Interface APIC = Advanced Programmable Interrupt Controller APIPA = Automatic Private Internet Protocol Addressing APIS = Advanced Passenger Information System APL = A Programming Language Average Picture Level APLSF = Advanced Programming Language / Shared Files APM = Advanced Power Management Application Performance Management APN = Access Point Name APNIC = Asia-Pacific Network Information Center APP = Applecare Protection Plan Application APPC = Advanced Program-to-Program Communications APPCM = Access Protection & Priority Control Mechanism APPEL = A P3P Preference Exchange Language APPI = Advanced Peer-to-Peer Internetworking APPN = Advanced Peer-to-Peer Networking APR = Advanced Port Replicator Apache Portable Runtime APRP = Adaptive Pattern Recognition Processing APS = Active Pixel Sensor Advanced Photo System Advanced Printing Service Analog Protection System Asynchronous Protocol Specification Automatic Protection Switching ARC = Attached Resources Computing ARG = Alternate Reality Game ARIES = ATM Research & Industrial Enterprise Study ARLL = Advanced Run Length Limited ARP = Address Resolution Protocol ARPA = Advanced Research Projects Agency ARPANET = Advanced Research Projects Agency Network ARQ = Automatic Repeat Request AS = Autonamous Systems ASA = American Standards Association ASAD = Association of Shareware Authors and Distributors ASAP = Any Service / Any Port ASCII = American Standard Code for Information Interchange ASG = Advanced Systems Group ASIC = Application Specific Integrated Circuit ASME = American Society of Mechanical Engineers ASP = Association Of Shareware Professionals ASPI = Advanced SCSI Programming Interface ASR = Automatic Send / Recieve AST = Asynchronous System Trap AT = Advanced Technology Attention ATA = Advanced Technology Attachment ATAPI = Advanced Technology Attachment Packet Interface ATEC = Authorized Technical Education Center AT&T = American Telephone & Telegraph ATM = Adobe Type Manager Asynchronous Transfer Mode Automated Teller Machine AUI = Attachment Unit Interface AVI = Audio / Video Interleaved AVN = Ameritech Virtual Network AWB = Aglets Workbench AXP = Almost Exactly Prism B2B = Business To Business B8ZS = Binary 8-Zero Substitution BALUN = Balanced / Unbalanced BANCS = Bell Application Network Control System BANM = Bell Atlantic Nynex Mobil BARRNET = Bay Area Research Network BASIC = Beginners All-Purpose Symbolic Instruction Code BAT = Batch BBN = Bolt, Baranek & Newman BBS = Bulletin Board System BCC = Blind Carbon Copy BCD = Binary Coded Decimal B-CDMA = Broadband Code Division Multiple Access BCR = Business Communications Review BDC = Backup Domain Controller BECN = Backward Explicit Congestion Notation BellCoRe= Bell Communications Research BEZS = Bandwidth Efficent Zero Suppression BFT = Binary File Transfer BGA = Ball Grid Array BGP = Border Gateway Protocol B-ICI = Broadband - ISDN Inter-Carrier Interface BIL = Band Interleaved by Line BIOS = Basic Input / Output System BIP = Band Interleaved by Pixel B-ISDN = Broadband - Integrated Services Digital Network Bit = Binary Digit bitBLT = BitBlock Transfer BITNET = Because It's Time Network BITS = Background Intelligent Transfer Service BIU = Bus Interface Unit BL = Blue Lightning (Chip) BMP = Bitmap BNC = Britsh National Connector BOOTP = Boot Protocol BPB = BIOS Parameter Block BPF = Berkeley Packet Filter BPS = Bits Per Second BRB = Be Right Back BRI = Basic Rate Interface BSC = Bi-Synchronous Communication BSD = Berkeley Software Distribution BSP = Bell Systems Practice BSQ = Band Sequential BT = British Telecom BTB = Branch Target Buffer BTS = Base Transciever Station BUS = Broadcast and Unknown Server C = Country CA = Computer Animation CAB = Cabinet CAC = Connection Admission Control CACP = Central Arbitration Control Point CAD = Computer Aided Design CADD = Computer Aided Design and Drafting CAE = Computer Aided Engineering CAI = Computer Aided Instruction CAL = Client Access License Computer Augmented Learning CAM = Common Access Method Computer Aided Manufacturing CAN = Campus Area Network CAP = Competitive Access Provider Carrierless Amplitude and Phase CAS = Column-Address Select CASE = Computer Aided Software Engineering CATANET = Concatanated Network CATV = Cable Television CAV = Constant Angular Velocity CB = Citizens Band Component Broker CBR = Constant Bit Rate CBT = Computer Based Training CC = Carbon Copy Closed Captioned CCB = Command Control Block CCITT = Comite Consultatif International Telephonique et Telegraphique (International Telephone And Telegraph Consultative Commitee) CCS = Common Channel Signaling Common Command Set CCTV = Closed Circuit Television CD = Carrier Detect Compact Disc CDC = Control Data Corporation CD-DA = Compact Disc - Digital Audio CDDI = Copper Distributed Data Interface CDFS = CD-ROM File System CDI = Compact Disc Interactive CDIA = Certified Document Imaging Architect CDMA = Code Division Multiple Access CDPD = Cellular Digital Packet Data CD-R = Compact Disc - Recordable CD-RW = Compact Disc - Re-Writable CD-ROM = Compact Disc - Read Only Memory CDV = Cell Delay Variation CDVT = Cell Delay Variation Tolerance CE = Consumer Electronics CERFNET = California Educational Research Network CERT = Computer Emergency Response Team CES = Circuit Emulation Services Consumer Electronics Show CF = Carry Flag CFG = Configuration CFP = Computers, Freedom and Privacy CGA = Color Graphics Adapter CGI = Common Gateway Interface CGM = Computer Graphics MetaFile CHAP = Challenge-Handshake Authentication Protocol CHS = Cylinders / Heads / Sectors CICS = Customer Information Control System CIDR = Classless Inter-Domain Routing CIF = Cells In Frame CIM = Common Information Model CIO = Chief Information Officer CIR = Committed Information Rate CIS = Card Information Structure CompuServe Information Services CISC = Complex Instruction Set Computing CLE = Customer Located Equipment CLEC = Competetive Local Exchange Carrier CLIP = Classical Internet Protocol CLP = Cell Loss Priority CLR = Cell Loss Ratio CLSID = Class Identifier CLV = Constant Linear Velocity CMI = Cable Microcell Integrator CMI/HIC = Cable Microcell Integrator / Headend Interface Converter CMIP = Common Management Information Protocol CMOS = Complimentary Metal Oxide Semiconductor CMP = Communications Plenum Cable CMR = Communications Riser Cable CMS = Code Management System CMYK = Cyan, Magenta, Yellow Key CN = Common Name CNA = Certified Network Administrator CNC = Computer Numeric Control CNE = Certified Network Engineer CNS = Certified Novell Salesperson CO = Central Office COA = Certificate Of Authenticity COAST = Cache On A Stick COBOL = Common Business Oriented Language CODEC = Coder / Decoder Compression / Decompression COM = Communications Computer Output Microfilm COMDEX = Communications Development Exposition COPS = Concept Oriented Programming System CORBA = Common Object Request Broker Architecture COS = Class Of Service COSMOS = Computer System for Mainframe Operations CoSysOp = Co-Systems Operator COW = Charachter-Oriented Windows Interface CPE = Customer Premises Equipment CPM = Cents Per Thousand CP/M = Control Program / Microcomputer CPS = Charachters Per Second CPU = Central Processing Unit CR = Carriage Return CRC = Cyclical Redundancy Checking CRN = Computer Reseller News CRT = Cathode Ray Tube C-SCANS = Client-Systems Computer Access Networks CSD = Corrective Service Diskettes CSID = Calling Station Identification CSLIP = Compressed Serial Line Internet Protocol CSMA = Carrier Sense Multiple Access CSMA/CD = Carrier Sense Multiple Access - Collision Detection CSNET = Computer Science Network CSP = CompuCom Speed Protocol = Cryptographic Service Provider CSS = Cascading Style Sheets CSS2 = Cascading Style Sheets (Level 2) CSU = Channel Service Unit CT = Computer Telephony CTD = Cell Transfer Delay CTI = Computer-Telephony Integration CTS = Clear To Send Signal CTTC = Copper To The Curb CTTH = Copper To The Home CTTY = Console Teletype CUI = Centre Universitaire d'Informatique CUT = Control Unit Terminal CVF = Compressed Volume File CW = Continuous Wave CWT = Call Waiting CYBORG = Cybernetic Organism D2T2 = Dye Diffusion Thermal Transfer DAC = Digital Analog Converter DAMA = Demand Assigned Multiple Access DARPA = Defense Advanced Research Projects Agency DAS = Dual Attachment Station DASD = Direct Access Storage Device DAT = Digital Audio Tap Digital Audio Tape DATU = Direct Access Testing Unit DAVID = Digital Audio/Video Interactive Decoder dB = Decibels dBm = Decibels per Milliwatt DBMS = DataBase Management System DBR = DOS Boot Record DBS = Demand Broadcast System Direct Broadcast Satellite DC = Direct Current DCA = Document Content Architecture DCB = Data Control Block DCC = Direct Cable Connection DCE = Data Communications Equipment Distributed Computing Environment DCS = Digital Communication System DD = Data Definition Definition Description (HTML) Double Density Dynamic Difficulty DDCMP = Digital Data Communications Message Protocol DDD = Digital Diagnostic Diskette Direct Distance Dial DDE = Dynamic Data Exchange D-Dial = Diversi-Dial DDN = Defense Data Network DDT = Don't Do That Dynamic Debugging Tool DE = Discard Eligible DEC = Digital Equipment Corporation DECNET = Digital Equipment Corporation Network DES = Defense Encryption Standard Digital Encryption Standard DFDSS = Data Facility Dataset Services DFHSM = Data Facility Hierarchical Storage Manager DFSMS = Data Facility Storage Management Subsystem DG-UX = Data General Unix DHCP = Dynamic Host Configuration Protocol DI = Destination Index DIIG = Digital Information Infrastructure Guide DIMM = Dual In-Line Memory Module DIN = Deutsche Industrie Norm DIP = Dual In-Line Package DIS = Dynamic Impedence Stabalization DISOSS = Distributed Office Support System DL = Definition List DLC = Digital Loop Carrier DLCI = Data Link Connection Identifier DLL = Dynamic Link Library DLSw = Data Link Switching DLT = Digital Linear Tape DLVA = Detector Logarithmic Video Amplifier DOC = Document DMA = Direct Memory Access DMCA = Digital Millennium Copyright Act DMF = Distribution Media Floppy DMI = Desktop Management Interface DMM = Digital Multi-Meter DMS = Digital Multiplex Switch Digital Multiplex System DMT = Discrete Multi-Tone DMTF = Desktop Management Task Force DN = Domain Name DNA = DEC Network Architecture DNIS = Dialed Number Identification Service DNR = Digital Number Recorder DNS = Domain Name System DOS = Disk Operating System DOW = Direct Over-Write DPAM = Demand Priority Access Method DPI = Dot Pitch Integer Dots Per Inch DPMI = DOS Protected Mode Interface DPMS = Display Power Management Signaling DOS Protected Mode Services DPT = Distributed Processing Technology DQDB = Distributed Queue Dial Bus DRAM = Dynamic Random Access Memory DS = Dual Screen DS0 = Digital Signal level 0 DSA = Distributed Systems Architecture DSI = Digital Speech Interpolation DSK = Dvorak Simplified Keyboard DSL = Digital Subscriber Line DSLAM = Digital Subscriber Line Access Multiplexer DSP = Digital Signal Processor DSR = Date Set Ready DSU = Data Service Unit DT = Definition Term DTA = Disk Transfer Area DTD = Document Type Declaration DTE = Data Terminal Equipment DTMF = Dual Tone Modulated Frequency DTP = Desktop Publishing DTR = Data Terminal Ready DTV = Desktop Video DUN = Dial-Up Networking DV = Digital Video DVB = Digital Video Broadcasting DVC = Digital Video Conference DVD = Digital Video Disc DVD-R = Digital Video Disc - Recordable DVD-RW = Digital Video Disc - Re-Writable DVI = Digital Video Interactive DXI = Data Exchange Interface DYLAN = Dynamic Language E1 = European 1 E3 = European 3 EBCDIC = Extended Binary Code - Decimal Interchange Code EBR = Extended-Partition Boot Record ECC = Error Correction Code ECD = Electronic Cash Disbursements ECM = Error Correction Mode ECMA = European Computer Manufacturers Association ECP = Extended Capabilities Port ED = Extra-High Density Extended Density EDI = Electronic Data Interchange EDO = Extended Data-Out EDP = Electronic Data Processing EEPROM = Electronic Erasable Programmable Read-Only Memory EEST = Enhanced Ethernet Serial Transciever EFCI = Explicit Forward Congestion Indication EFF = Electronic Frontier Foundation EFT = Electronic Funds Transfer EGA = Enhanced Graphics Adapter EGP = Exterior Gateway Protocol EIA = Electronic Industries Association EIDE = Enhanced Integrated Drive Electronics EIRP = Effective Isotropic Radiated Power EIS = Executive Information System EISA = Enhanced/Extended Industry Standard Architecture ELAN = Emulated Local Area Network ELF = Extremely Low Frequency EMA = Electronic Messaging Association Enterprise Management Architecture E-Mail = Electronic Mail EMF = Electro Motive Force Enhanced Metafile Format EMM = Extended Memory Manager EMR = Electromagnetic Radiation EMS = Expanded Memory Specification ENIAC = Electronic Numerical Integrator And Calculator EOF = End Of File EOT = End Of Transfer EPIC = Electronic Privacy Information Center EPP = Enhanced Parallel Port EPROM = Erasable Programmable Read-Only Memory EPS = Encapsulated Post-Script ERU = Emergency Recovery Utility ESA = Enterprise Systems Architecture ESC = Engineering Service Circuit Escape ESD = Electronic Software Distribution Electro-Static Discharge ESDI = Enhanced Small Device Interface ESN = Electronic Serial Number ESO = Entry Server Offering ESP = Enhanced Serial Port Enhanced Service Provider ESRI = Environmental Systems Research Institute ETO = Electronic Trading Opportunity EULA = End User Licensing Agreement EV = Extended Validation EXE = Executable F-Key = Function Key FAQ = Frequently Asked Question FAT = File Allocation Table FAX = Facsimile FCB = File Control Block FCC = Federal Communications Commission FCS = First Customer Release FDC = Floppy Disk Controller FDDI = Fiber Distributed Data Interface FDMA = Frequency Division Multiple Access FEC = Foreign Exchange Carrier Forward Error Correction FECN = Forward Explicit Congestion Notification FED = Field Emission Display FEDTV = Field Emission Display Television FEP = Front End Processor FERF = Far End Reporting Failure FIFO = First In / First Out FITS = Flexible Image Transport System FM = Frequency Modulation FOIM = Field Office Information Management FOIRL = Fiber Optic Inter-Repeater Link FORTRAN = Formula Translator FPNW = File and Print for NetWare FPS = Floating Point System Frames Per Second FPT = Forced Perfect Termination FPU = Floating Point Unit FQDN = Fully Qualified Domain Name FRAD = Frame Relay Access Device FRF = Frame Relay Form FSK = Frequency Shift Keying FSN = Full Service Network FTAM = File Transfer Access Management FTC = Federal Trade Commission FTP = File Transfer Protocol FTPD = File Transfer Protocol Daemon FTS = Federal Telecommunications System FTTC = Fiber To The Curb FTTH = Fiber To The Home FUNI = Frame User Network Interface FVIPS = First Virtual Internet Payment System FYI = For Your Information G = Gigabyte Gb = Gigabit Gbps = Gigabits Per Second GB = Game Boy = Gigabyte GBA = Game Boy Advanced GCRA = Generic Cell Rate Algorithm GDG = Generation Data Group GDI = Graphics Device Interface GDS = Generation Dataset GEIS = General Electric Information Systems GES = Global Enterprise Services GFC = Generic Flow Control GGP = Gateway-to-Gateway Protocol GIF = Graphical Interchange Format GIG = Gigabyte GIGO = Garbage In - Garbage Out GIS = Geographic Information System GNR = Genetic Engineering / Nanotech / Robotics GOES = Geosynchronous Orbital Earth Satellite GOSIP = Government Open Systems Interconnection Profile GPC = General Purpose Computer GPF = General Protection Fault GPS = Global Positioning System GSM = Global Services for Mobile GSNW = Gateway Services for NetWare GSO = Geostationary Orbit GTA = Grand Theft Auto GTPNet = Global Trade Point Network GUI = Graphical User Interface GW2K = Gateway 2000 HAL = Hardware Abstraction Layer HAM = Home Amature Mechanic HAN = Home Area Network HBA = Host Bus Adapter HCL = Hardware Compatability List HCSS = High-Capacity Storage System HD = Hard Drive High-Definition High-Density HDA = Head Disk Assembly HDC = Hard Disk Controller HDLC = High-Level Data Link Control HDR = Host Data Replicator HDSL = High-bit-rate Digital Subscriber Line HDT = Host Digital Terminal HDTV = High-Definition Television HEC = Header Error Control HEPNET = High Energy Physics Network HEX = Hexadecimal HFC = Hybrid Fiber-Coaxial HGC = Hercules Graphics Card HIC = Headend Interface Converter HLF = High-Level Formatting HLL = High-Level Language HLLAPI = High-Level-Language Application Program Interface HLP = Help HMA = High Memory Area HMMP = HyperMedia Management Protocol HMMS = HyperMedia Management Schema HMP = Host Monitoring Protocol HP = Hewlett-Packard HPC = Handheld Personal Computer HPFS = High Performance File System HPT = High-Pressure Tin HR = Horizontal Rule HRD = High Resolution Diagnostic Diskette HRSC = High Resolution Stereo Camera HSI = High-Speed Interconnect HSSI = High Speed Serial Interface HST = High-Speed Technology HTML = Hypertext Markup Language HTTP = Hypertext Transfer Protocol HW = HRSC / WAOSS Hz = Hertz IA = Intel Architecture IAB = Internet Activities Board Interactive Advertising Bureau IAD = Integrated Access Device IAM = Inverse ATM Mux IARPA = Intelligence Advanced Research Projects Agency IBM = International Business Machines IBS = IntelSat Business Service IC = Integrated Circuit ICD = Internation Code Designation ICE = Intrusion Countermeasure Electronics ICMP = Internet Control Message Protocol ICR = Intelligent Charachter Recognition ICRIS = Integrated Customer Record Information System IDC = Internet Database Connector IDE = Integrated Drive Electronics IDG = International Data Group IDP = integrated Data Processing IDSL = ISDN Digital Subscriber Line IEEE = Institute of Electronic and Electrical Engineers IEN = Integrated Enterprise Network IESG = Internet Engineering Steering Group IETF = Internet Engineering Task Force IFM = Intelligent Flow Management IGMP = Internet Group Multicast Protocol IGP = Interior Gateway Protocol IIOP = Internet Inter-ORB Protocol IIS = Internet Information Services IISP = Interim Inter-Switch Protocol ILMI = Integrated Layer Management Interface IMAP = Internet Messaging Access Protocol IMC = Initial Microcode Load IMP = Interface Message Processor IMUX = Inverse Multiplexing IN = Intelligent Network INI = Initialization INTELSAT= International Telecommunications Satellite Organization InterNIC= Internet Network Information Center INWG = International Network Working Group I/O = Input / Output IOS = Inter-Network Operating System IP = Internet Protocol IPC = Internet Proxy Cache IPL = Initial Program Load IPMI = Internet Provider Multicast Initiative IPN = Internet Protocol Number IPNG = Internet Protocol - Next Generation IPO = Initial Public Offering IPv4 = Internet Protocol version 4 IPv6 = Internet Procotol version 6 IPX = Internetwork Packet Exchange IRC = Internet Relay Chat IRF = Inherited Rights Filter IRL = In Real Life IRQ = Interrupt - Request Line IRTF = Internet Research Task Force IRTOS = I2O Real-Time Operating System ISA = Industry Standard Architecture Interactive Services Association ISAM = Indexed Sequential Access Method ISDN = Integrated Services Digital Network ISIS = Internally Switched Interface System ISIS = Investigative Support Information System ISM = Internet Service Manager ISMF = Interactive Storage Management Facility ISO = International Standards Organization ISP = Internet Service Provider ISPA = Inverted Socket Process Architecture ISPF/PDF= Interactive System Productivity Facility / Program Development Facility IT = Information Technology ITS = Internet Telephony Server ITT = International Telephone & Telegraph ITTA = Information Technology Training Association ITU = International Telecommunications Union ITV = Interactive Television IWM = Integrated Woz Machine IXC = InterExchange Carrier JCL = Job Control Language JDBC = Java DataBase Connectivity JDK = Java Development Kit JEDEC = Joint Electron Devices Engineering Council JES = Job Entry Subsystem JIT = Just In Time JMAPI = Java Management Application Intrface JNDI = Java Naming Directory Interface JNET = Japanese Network JOVIAL = Jule's Own Version of the International Algorithmic Language JPEG = Joint Photographic Experts Group JPG = Joint Photographic Experts Group JTS = Java Transaction Services K = Kilobyte KABU = Keep Alive Base unit kc = KiloCycle kb = Kilobit kbps = Kilobits Per Second kB = Kilobyte kHz = KiloHertz KIF = Knowledge Interchange Format KnU = Knowledge Utility KOTOR = Knights Of The Old Republic LAN = Local Area Network LANE = Local Area Network Emulation LAP-B = Link Access Procedure - Balanced LAPM = Link Access Procedure - Modems LAR = Large Account Reseller LAT = Local Area Transport LATA = Local Access and Transport Area LAV = Load Average LBA = Logical Block Addressing LCC = Leadless Chip Carrier LCD = Liquid Crystal Display LDAP = Lightweight Directory Access Protocol LD-CELP = Low-Delay Code Excited Linear Prediction LEC = LAN Emulation Client Local Exchange Carrier LECS = LAN Emulation Configuration Server LED = Light Emitting Diode LegOS = Lego Operating System LEN = Line Equipment Number LES = LAN Emulation Server LF = Line Feed LHB = Line History Block LI = List Item LibOp = Libraries Operator LIF = Low Insertion Force LIFO = Last In / First Out LILO = Linux Loader LIM = Lotus-Intel-Microsoft LIS = Lithium Ion Storage LISP = List Processing LLC = Logical Link Control LLF = Low-Level Formatting LMDS = Local Multipoint Distribution Service LNA = Low Noise Amplifier LNB = Low Noise Block Deconverter LNNI = LAN Emulation Network-to-Network Interface LoD = Legion of Doom LOD = Level Of Detail LPC = Local Procedure Call LPT = Local Printer Terminal LT = Line Termination LU = Logical Unit LUN = Logical Unit Number LUNI = LAN User-to-Network Interface LZW = Lempel-Ziv-Walsh (Compression) M = Megabyte MAC = Macintosh Media Access Control MAN = Metropolitan Area Network MAP = Manufacturing Automation Protocol MAPI = Messaging Application Programming Interface MAPS = Multiservice Access Platforms MARS = Multicast Address Resolution Server MATV = Master Antenna Television MAU = Medium Attachment Unit Multi-Station Access Unit Mb = Megabit MB = Megabyte Mbps = Megabits Per Second MBS = Master Boot Sector Maximum Burst Size MBT = Maximum Burst Tolerance MC = Mini-Cartridge MCA = MicroChannel Architecture MCGA = MultiColor Graphics Array MCI = Media Control Interface Microwave Communications, Inc. MCR = Minimum Cell Rate MDA = Monochrome Display Adapter MDC = McAfee Development Center MDI = Multiple Document Interface MDRAM = Multibank Dynamic Random Access Memory MEG = Megabyte MEMS = Microelectromechanical Systems MF = Modulated Frequency MFM = Modified Frequency Modulation MFTP = Multi-Cast File Transfer Protocol MGA = Monochrome Graphics Adapter MHS = Message Handling Service MHz = Megahertz MI = Mode Indicate MIB = Management Information Bases MIC = Microsoft Internet Chat Mode Indicate - Common MICA = Modem ISDN Channel Aggregation MICR = Magnetic Ink Charachter Recognition MICROTEL= Microsoft / Intel MIDI = Musical Instrument Digital Interface MIDR = Mosaicked Image Data Record MIG = Metal-In-Gap MILES = Merisel's Information and Logistical Efficency System MILNET = Military Network MIME = Multipurpose Internet Mail Extension MIN = Mobile Identification Number MIPL = Multimission Image Processing Laboratory MIPS = Millions Of Instructions Per Second Multimission Image Processing Subsystem MIS = Management Information System MLP = Microsoft License Packs MMDS = Multipoint Multichannel Distribution Service MMO = Massively Multi-User Online MMORPG = Massively Multi-User Online Role Playing Game MMUD = Massively Multi-User Dungeon MMX = Multimedia Extension MNP = Microcom Networking Protocol MO = Magneto-Optical MOCA = Merisel Open Computing Alliance MoD = Masters of Deception MOD = Modulo MODEM = Modulator / Demodulator MOL = Microsoft Open License Machine Oriented Language MOLP = Microsoft Open License Program MOM = Microsoft Office Manager MOS = Metal Oxide Semiconductor MPC = Multimedia Personal Computer MPD = Mini Port Driver MPEG = Motion Picture Experts Group MPG = Motion Picture Experts Group MPOA = Multi-Protocol Over ATM MPS = Multi-Processor Specification MR = Magneto-Resistive MS = Microsoft System(s) MSCDEX = Microsoft Compact Disc Executable MSD = Microsoft Diagnotic MS-DOS = Microsoft Disk Operating System MSN = Microsoft Network MSNBC = Microsoft - National Broadcasting Company MSO = Multiple Systems Operators MSTP = Multimission Software Transmission Project MSTV = Microsoft Television MTA = Major Trading Area Mail Transfer Agent Message Transfer Agent MTBF = Mean Time Before Failure MTTR = Mean Time To Repair MTV = Music Television MUA = Mail User Agent MUD = Multi-User Dungeon MULTICS = Multiplexed Information and Computing Service MUP = Mindstorms Users Panel MUX = Multiplexer MVP = Modular Voice Processor MVS = Multiple Virtual Storage MVS/ESA = Multiple Virtual Storage / Enterprise Systems Architecture MVS/SP = Multiple Virtual Storage / System Product MVS/TSO = Multiple Virtual Storage / Time Sharing Option MVS/XA = Multiple Virtual Storage / Extended Architecture MWI = Message Waiting Indicator MWN = Message Waiting Notification NACK = Negative Acknowledgement NAP = Network Access Point NASDAQ = North American Securities Dealers - Automated Quoting NAU = Network Addressable Unit NBB = Number of Bytes of Binary NC = Network Computer NCA = Network Computing Architecture NCC = Network Control Center NCF = Netware Command File NCIC = National Crime Information Computer NCM = Node Controller Module NCP = Network Control Program Network Core Protocol NCPS = Netware Cross-Platform Services NCSA = National Center for Supercomputing Applications National Computer Security Association NCSC = National Computer Security Center NDA = Non-Disclosure Agreement NDIAG = Norton Diagnostics NDIS = Network Device Interface Specification NDMP = Network Data Management Protocol NDS = Novell Directory Service NEARNET = New England Academic and Research Network NEAT = Novell Easy Administration Tool NEDS = New Economy Depression Syndrome NetBEUI = NetBIOS Extended User Interface NetBIOS = Network Basic Input / Output System NEWS = Novell Electronic Webcasting Service NFR = Not For Resale NFS = Network File System NHRP = Next Hop Resolution Protocol Non-Hierarchical Routing Protocol NIC = Network Information Center Network Interface Card NiCD = Nickel Cadmium NII = National Information Infrastructure NIMBY = Not In My Backyard NiMH = Nickel Metal Hydride NIMS = Near Infrared Mapping Spectrometer NIS = Network Information Service NLB = Number of Lines of Binary NLM = NetWare Loadable Module NLP = Natural Language Processing NLQ = Near Letter Quality NLS = Online System NMI = Non-Maskable Interrupt NNI = Network Node Interface Network-To-Network Interface NNTP = Network News Transport Protocol NOC = Network Operations Center NOF = Not On File NORAD = North American Defense Command NOS = Network Operating System NPA = Numbering Plan Area NPC = Network Parameter Control NPN = Notes Public Network NPR = Network Process Engineering National Public Radio NQC = Not Quite C NRN = Novell Remote Network NRT = Non-Real-Time NSA = National Security Agency NSFNET = National Science Foundation Network NSI = Network Solutions, Inc. NSM = Network / Systems Managment NSP = National Service Provider NT = New Technology NTFS = NT File System NTP = Network Time Protocol NTSC = National Television Standards Commitee NTT = Numbered Test Trunk NUI = Network User Identification NUMA = Non-Uniform Memory Access NVRAM = Non-Volatile Random Access Memory NWG = Network Working Group NYNEX = New York - New England Exchange NYSERNET= New York State Education Research Network O = Organization OA&M = Operations Administration & Maintainance OAG = Open Applications Group OCE = Open Collaboration Environment OCIS = Organized Crime Information System OCR = Optical Charachter Recognition ODBC = Open Database Compliant ODI = Open Data-Link Interface ODN = OutDial Notification ODSI = Open Directory Service Interface OEM = Original Equipment Manufacturer OFDM = Orthogonal Frequency Division Multiplexing OL = Ordered List OLAP = Online Analytical Processing OLE = Object Linking and Embedding OMR = Optical Mark Recognition ONE = Open Network Environment OneDOJ = One Department Of Justice ONMS = Open Network Management System ONU = Optical Networking Unit OOF = Out-Of-Frame OPC = Organic Photoconducting Cartridge OPT = Open Protocol Technology ORMS = Operating Resource Management System OS = Operating System OS/2 = Operating System / 2 OSF = Open Software Foundation OSI = Open Systems Interconnection Open Standards Interconnection OSPF = Open Shortest Path First OSR = OEM System Release OT = Open Transport OU = Organizational Unit OURS = Open User-Recommended Solutions P2P = Peer To Peer PABX = Private Automatic Branch Exchange PAD = Packet Assembler / Disassembler PAL = Phase Alteration Standard Phase Alternating Line Programmable Array Logic PAM = Peachtree Accounting - Macintosh PAP = Password Authentication Protocol PARC = Palo Alto Research Center (Xerox PARC) PAS = Publicly Available Submitter PAW = Peachtree Accounting for Windows PAX = Private Automatic Exchange PBIS = Peachtree Business Internet Suite PBMS = Pacific Bell Mobile Services PBS = Portable Base Station Public Broadcasting Service PBX = Private Branch Exchange PC = Personal Computer PCA = Peachtree Complete Accounting Performance and Coverage Analyzer PCDOS = Personal Computer Disk Operating System PCI = Personal Computer Interconnect Peripheral Component Interface PCL = Printer Control Language PCM = Pulse Code Modulation PCMCIA = Personal Computer Memory Card International Association PCR = Peak Cell Rate PCS = Personal Communication System Proxy Cache Server PD = Phase-Change - Dual PDA = Personal Digital Assistant PDC = Primary Domain Controller PDF = Portable Data Format PDN = Public Data Network PDP = Program Data Processor PDQ = Peachtree Data Query PDS = Partitioned Dataset Planetary Data System Premise Distribution System PDU = Protocol Data Unit PEM = Product Error Message PF = Program Function PFA = Peachtree First Accounting PGA = Pin-Grid Array Professional Graphics Adapter PGP = Pretty Good Privacy PIC = Preferred InterExchange Carrier Primary InterExchange Carrier Programmable Interrupt Controller Picture PIF = Program Information File PIG = Product Information Guide PIM = Personal Information Manager PIN = Personal Identification Number PING = Packet Internet Groper PIO = Programmed Input / Output PIXEL = Picture Element PLCC = Plastic Leaded-Chip Carrier PLCP = Physical Layer Convergence Protocol PLE = Public Local Exchange PLL = Phase Locked Loop PLOrk = Princeton Laptop Orchestra PLoS = Public Library of Science PLP = Packet Level Procedure PMS = Pantone Matching System PNG = Portable Network Graphics PNNI = Private Network-to-Network Interface PnP = Plug and Play POA = PowerOpen Association POH = Power On Hours POP = Point Of Presence Post Office Protocol POS = Programmable Option Select Point Of Sale POST = Power On - Self Test POTS = Plain Old Telephone Service PPD = Post-Script Printer Description PPI = Programmable Peripheral Interface PPN = Project-Programmer Number PPP = Point-To-Point Protocol PPS = Pulses Per Second PPTP = Point-to-Point Tunneling Protocol PQFP = Plastic Quad Flat Pack PRI = Primary Rate Interface PRIMOS = Prime Operating System PRML = Partial Response - Maximum Likelihood PROFS = Professional Office System PROM = Programmable Read-Only Memory PRW = Peachtree Report Writer PS = Physical Sequential Play Station Post-Script Programmed Symbols PS/1 = Personal System / 1 PS/2 = Personal System / 2 PS1 = Play Station 1 PS2 = Play Station 2 PS3 = Play Station 3 PSC = Peachtree Support Center PSDN = Packet Switched Data Network PSP = Playstation Portable PSTN = Public Switched Telephone Network PU = Physical Unit PUN = Physical Unit Number PUP = PARC Universal Packet PVC = Permanent Virtual Circuit Permanent Virtual Connections PWS = Peer Web Services QA = Quality Assurance QAM = Quadrature Amplitude Modulation QBE = Query By Example QBP = QuickBooks Pro QDN = Query Direct Number QDOS = Quick and Dirty Operating System QEMM = Quarterdeck Extended Memory Manager QIC = Quarter Inch Cartridge Quarter Inch Committee QIO = Queue Input / Output QoS = Quality of Service QPSK = Quadrative Phase Shift Keying QTW = Quick-Time for Windows RAD = Rapid Application Development Remote Antenna Driver RADAR = Radio Detection And Ranging RAD/RASP= Remote Antenna Driver / Remote Antenna Signal Processor RADSL = Rate Adaptive Digital Subscriber Line RAID = Redundant Array of Inexpensive Drives RAM = Random Access Memory Remote Access Modem RAMDAC = Random Access Memory Digital to Analog Converter RAP = Roving Analysis Port RARP = Reverse Address Resolution Protocol RAS = Remote Access Services RASP = Remote Antenna Signal Processor RBB = Residential Broadband RBOC = Regional Bell Operating Companies RCF = Remote Call Forwarding RDF = Radio Direction Finding RDM = Report Display Manager RDN = Relative Distinguished Name RDP = Reliable Datagram Protocol RDRAM = Rambus Dynamic Random Access Memory RECS = Reseller Electronic Communication System REM = Remark REMOB = Remote Observation RET = Resolution Enhancement Technology REXEC = Remote Executable REXX = Restructured Extended Executor RF = Radio Frequency RFC = Request For Comments RFQ = Request For Quotation RFI = Radio Frequency Interface Request For Information RFID = Radio Frequency Identification RFNM = Request For Next Message RFS = Remote File Service Remote File System RGB = Red-Green-Blue RIP = Routing Information Protocol RISC = Reduced Instruction Set Computing RJE = Remote Job Entry RLE = Run Length Encoding RLL = Run Length Limited RLOGIN = Remote Login RM = Resource Management RMA = Return Merchandise Authorization RMS = Record Management Services RO = Receive Only ROM = Read Only Memory RoR = Ruby On Rails RPC = Remote Procedure Call RPG = Role Playing Game RPM = Revolutions Per Minute RSA = Rivest, Shamir and Adleman (Encryption) RSEXEC = Resource Sharing Executive RSH = Remote Shell Restricted Shell RSS = Really Simple Syndication Rich Site Summary RSVP = Resource Reservation Protocol RT = Real-Time RTC = Real-Time Clock RTCP = Real-Time Transport Control Protocol RTF = Rich Text Format RTFM = Read The F***ing Manual RTL = Run-Time Library RTP = Real-Time Transport Protocol RTS = Request To Send RTSP = Real-Time Streaming Protocol RTTY = Radio Teletype RU = Request Unit Response Unit RVD = Remote Virtual Disk S-bots = Simple Robots SAA = Service Aspects and Applications Systems Application Architecture SACD = Super Audio Compact Disc SAFE = Security And Freedom through Encryption SAP = Service Advertising Protocol SAR = Segmentation And Reassembly SARC = Symantec Antivirus Research Center SAS = Single Attachment Station SASI = Shugart Associates System Interface SATAN = Security Administrator Tool for Analyzing Networks SATNET = Satellite Network SCC = Switching Control Center SCCS = Switching Control Center System SCE = Service Creation Environment SCLM = Software Configuration and Library Manager SCO = Santa Cruz Operation SCP = Service Control Point SCPC = Single-Channel Per Carrier SCR = Sustained Cell Rate SCSI = Small Computer System Interface SDH = Synchronous Digital Hierarchy SDL = Shielded Data Link SDLC = Synchronous Data Link Control SDSC = San Diego Supercomputer Center SDSF = System (Spool) Display and Search Facility SEAL = Secure Electronic Authorization Laboratory Simple and Efficent Adaption Layer SECABS = Small Exchange Carrier Access Billing System SECAM = Sequential And Memory SEM = System Error Message SET = Secure Electronic Transactions SFA = Sales Force Automation SFT = System Fault Tolerance SGI = Silicon Graphics, Inc. SGML = Standardized General Markup Language S-HDSL = Single-Line - High-bit-rate Digital Subscriber Line SI = Source Index SIF = Standard Input Format SIG = Special Interest Group SIM = Subscriber Identity Module SIMM = Single In-Line Memory Module SIP = Single In-Line Package Session Initiation Protocol SIPP = Single In-Line Pin Package SKIP = Simple Key management for Internet Protocol SLED = Single Large Expensive Disk SLIP = Serial Line Internet Protocol SLMR = Silly Little Mail Reader SMB = Server Message Block SMCC = Sun Microsystems Computer Company SMDS = Switched Multi-Megabit Data Services SMI = System Management Interrupt SMM = System Management Mode SMP = Symmetrical Multi-Processing SMPTE = Society of Motion Picture and Television Engineers SMS = Service Management Systems Storage Management Subsystem SMT = Station Management SMTP = Simple Mail Transfer Protocol SNA = Systems Network Architecture SNADS = Systems Network Architecture Distribution Services SNAP = Sub-Network Access Protocol SNMP = Simple Network Management Protocol SOHO = Small Office / Home Office SO-J = Small Outline J-lead SONET = Synchronous Optical Network SP = Stack Pointer SPARC = Scalable Processor Architecture SPID = Service Profile Identification SPP = Standard Parallel Port SPS = Standby Power Supply SPX = Sequenced Packet Exchange SQL = Structured Query Language SRAM = Static Random Access Memory SRT = Station Management SS6 = Signaling System 6 SS7 = Signaling System 7 SSA = Serial Storage Architecture SSB = Single Side Band SSCOP = Service Specified Convergence Protocol SSD = Solid State Disk SSFD = Solid State Floppy Disk SSL = Secure Sockets Layer SSPA = Solid State Power Amplifier STA = Spanning Tree Algorithm STD = Standard STM = Synchronous Transfer Mode STP = Shielded Twisted Pair Signal Transfer Protocol SUBLIB = Subroutine Library SUE = Stupid User Error SUN = Stanford University Networks SVC = Switched Virtual Circuit SVGA = Super Video Graphics Array SWIM = Super Woz Integrated machine SYS = System SysOp = Systems Operator T = Terabyte TA = Terminal Adaptor TAE = Transportable Applications Environment TAG = Technical Advisory Group TAP = Technological Assistance Program TAPI = Telephony Applications Program Interface TAR = Tape Archive Tb = Terabit Tbps = Terabits Per Second TB = Terabyte TBD = To Be Determined TCAM = Telecommunications Access Method TCG = Teleport Communications Group TCL = TAE Command Language TCM = Trellis Coded Modulation TCP = Tape Carrier Package Transmission Control Protocol TCP/IP = Transmission Control Protocol / Internet Protocol TCQAM = Trellis Coded Quadrature Amplitude Modulation TD = Table Data TDM = Time-Division Multiplexing TDMA = Time Division Multiple Access TDR = Time Domain Reflectometry TelOp = Teleconference Operator TEM = Transmission Electron Microscope TEMPEST = Transient Electromagnetic Emanations Standard TFT = Thin Film Transistor TFTP = Trivial File Transfer Protocol TG = Tecnical Guide TGID = Trunk Group Identification Number TH = Table Header THD = Total Harmonic Distortion THENET = Texas Higher Education Network TIA = The Internet Adapter TIC = Token-Ring Interface Coupler TIF = Tagged Image File TIFF = Tagged Image File Format TIGA = Texas Instruments Graphics Architecture TII = Technology Independent Interface TIP = Terminal IMP TLA = Three Letter Acronym TLB = Translation Lookaside Buffer TLD = Top Level Domain TMN = Time Management Networking TOP = Technical & Office Protocol TP = Twisted Pair TP-4 = Transport Protocol 4 TPA = Third Party Application TPD = Third Party Developer TPI = Tracks Per Inch TPPD = Twisted Pair - Physical-Media Dependent TR = Table Row TRPC = Transaction Remote Procedure Call TRS = Tandy Radio Shack TSAPI = Telephony Services Applications Program Interface TSO = Time Sharing Option TSO/E = Time Sharing Option / Extensions TSPS = Traffic Service Position System TSR = Terminate - Stay Resident TSU = Time Sharing User TT = Text Telephone TTF = True-Type Font TTL = Time To Live Transistor-to-Transistor Logic TTS = Transaction Tracking System TTT = Trunk-to-Trunk Transfer TTY = Teletype TUCAA = The Ultimate Computer Acronym Archive TUCOWS = The Ultimate Collection Of Windows Sockets TV = Television TVRO = Television - Receive Only TWAIN = Technology Without An Interesting Name TWTA = Traveling Wave Tube Amplifier TXT = Text UAE = Unrecoverable Application Error UART = Universal Asynchronous Receiver-Transmitter UBR = Unspecified Bit Rate UCM = Universal Cable Module UDF = Universal Disk Format UDP = User Datagram Protocol UI = User Interface UIC = User Identification Code UL = Underwriters Laboratories Unordered List ULF = Ultra Low Frequency UMA = Upper Memory Area UMB = Upper Memory Block UNC = Universal Naming Convention UNI = User-To-Network Interface UNIVAC = Universal Automatic Computer UNMA = Unified Network Management Architecture UPC = Universal Product Code Usage Parameter Control UPnP = Universal Plug And Play UPS = Uninterruptable Power Supply URL = Uniform Resource Locator USB = Universal Serial Bus USENET = User Network USL = Unix System Laboratory USR = U.S. Robotics UTP = Unshielded Twisted Pair UUCP = Unix-to-Unix Copy Program VAC = Volts - A/C Current VAFC = VESA Advanced Feature Controller VAN = Value-Added Network VAP = Value-Added Process VAR = Value-Added Reseller VAX = Virtual Address Extension VB = Visual Basic VBI = Vertical Blanking Interface VBR = Variable Bit Rate VC = Virtual Channel Virtual Circuit VCC = Virtual Channel Connection VCI = Virtual Channel Identifier VCPI = Virtual Control Program Interface VCR = Video Cassette Recorder VDC = Volts - Direct Current VDSL = Very-high-bit-rate Digital Subscriber Line VDT = Video Dial Tone VDU = Video Display Unit VERONICA= Very Easy Rodent-Oriented Networkwide Index to Computerized Archives VESA = Video Electronics Standard Asociation VFAT = Virtual File Allocation Table VFC = Vector Function Chainer Video Feature Connector VFW = Video For Windows VGA = Video Graphics Array VICAR = Video Image Communication And Retrieval VIDS = VICAR Interactive Display Subsystem VINES = Virtual Networking Software VL = VESA Local VLA = Volume License Agreement VLAN = Virtual Local Area Network VLB = VESA Local Bus VLF = Very Low Frequency VLM = Virtual Loadable Module VLSI = Very Large Scale Integration VM = Virtual Machine V-Mail = Voice Mail VMB = Voice Mail Box VMC = VESA Media Channel VMM = Virtual Memory Manager VMS = Virtual Memory System VoIP = Voice Over Internet Protocol VP = Virtual Path VPC = Virtual Path Connection VPI = Virtual Path Identifier VPN = Virtual Private Network VQ = Vector Quantication VR = Virtual Reality VRAM = Video Random Access Memory VRDI = Virtual Raster Display Interface VRML = Virtual Reality Modeling Language VSAM = Virtual Storage Access Method VSAT = Very Small Aperture Terminal VS/VD = Virtual Source / Virtual Destination VSWR = Voltage Standing Wave Radio VT = Virtual Tributary VTAM = Virtual Telecommunications Access Method VTOA = Voice and Telephony Over ATM VxD = Virtual Device Driver Virtual Extension Device W3 = World Wide Web W3C = World Wide Web Consortium W4WG = Windows For Workgroups WAIS = Wide Area Information Search WAITS = Wide Area Information Transfer Systems WAN = Wide Area Network WAOSS = Wide Angle Optoelectronic Stereo Scanner WATS = Wide Area Telephone Service Website Activity Tracking Statistics WAV = Waveform WCS = Wireless Communication Service(s) WDM = Wave Division Multiplexing WELL = Whole Earth 'Lectronic Link WFW = Windows For Workgroups WinHEC = Windows Hardware Engineering Conference WinHTTP = Windows Hypertext Transfer Protocol WINS = Windows Internet Name Service WINSOCK = Windows Socket WINTEL = Windows / Intel WMF = Windows MetaFile WORM = Write Once - Read Many wOz = Wheels Of Zeus WPG = WordPerfect Graphics WTOR = Write To Operator with Reply WWAN = Wireless Wide Area Network WWW = World Wide Web WYSIWYG = What You See Is What You Get X-Fi = eXtreme Fidelity XGA = Extended Graphics Array XHTML = eXtensible Hyper Text Markup Language XLS = Excel Spreadsheet XMM = Extended Memory Manager XMS = Extended Memory Specification XNS = Xerox Network Services XT = Extended Y2K = Year Two-Thousand Y3K = Year Three-Thousand YAHOO = Yet Another Hierarchical Officious Oracle YASNS = Yet Another Social Networking Service YMS = Young Micro Systems YP = Yellow Pages ZAC = Zero Administration Client ZAI = Zero Administrative Initiative ZAK = Zero Administration Kit ZAW = Zero Administration for Windows ZB = ZetaByte ZBR = Zero Bug Release Zone-Bit Recording ZCAV = Zoned Constant Angular Velocity ZD = Ziff-Davis ZDBOp = Ziff-Davis Benchmark Operation ZDL = Zero Delay Lockout ZDMI = Ziff-Davis Market Intelligence ZDS = Zenith Data Systems ZDTV = Ziff-Davis Television ZEN = Zero Effort Networking ZF = Zero Flag ZIF = Zero Insertion Force ZIP = Zig-Zag In-Line Package Zone Improvement Plan ZLR = Zoom Lens Reflex ZNA = Zero network Administration ZOPE = Z Object Publishing Environment ZPV = Zoomed Port Video ZSL = Zero Slot LAN ZV = Zoomed Video =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=