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0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| L1 : Level 1 cache (on CPU). |
| L2 : Level 2 cache (off CPU). |
| L2TP : Layer 2 Tunneling Protocol. |
| L3 : Level 3 cache (off CPU SMP). |
| LAN : Local Area Network. |
| LAPM : Link Access Protocol for Modems. |
| LBA : Logical Block Addressing (hard disk access). |
| LBM : DeLuxe Paint BitMap picture file. |
| LCD : Liquid Crystal Display. |
| LDAP : Lightweight Directory Access Protocol. |
| LDIF : Lightweight Data Interchange Format (e-mail). |
| LED : Light Emitting Diode. |
| LEP : Light Emitting Polymers technology (CDT monitor). |
| LFB : Linear Frame Buffer (2D video). |
| LFN : Long File Name (256.8 = Win32 32-bit). |
| LFO : Low Frequency Oscillator. |
| LH : LoadHigh. |
| LIM : Lotus/Intel/Microsoft expanded/extended memory specifications. |
| LIMAD : LInear MAgnetic Drive speaker technology (Soundmatters). |
| LMDS : Local Multipoint Distribution Service. |
| LPC : Low Pin Count interface specification (Intel). |
| LPT : Line PrinTer. |
| LTO : Linear Tape-Open technology (IBM, HP, Seagate). |
| LVD : Low Voltage Differential (SCSI-2). |
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0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| :MAC = MAC Paint picture file. |
| MAPI : Messaging Application Program Interface. |
| MB : MegaByte (1 MB = 1,024 KiloBytes = 1,048,576 bytes). |
| MBps : MegaBytes per second. |
| mbps : megabits per second. |
| MBR : Master Boot Record (partition table). |
| MCA : Multilink Channel Aggregation technology (Microsoft Windows 98). |
| MCD : Mini Client Driver (Microsoft 3D). |
| MCGA : MonoChrome Graphics Adapter. |
| MCI : Media Control Interface. |
| MDA : Modular Digital Architecture. |
| MDI : Multiple Document Interface. |
| MDRAM : Multibank Dynamic Random Access Memory (MoSys). |
| MGA : Monochrome Graphics Adapter. |
| MHz : MegaHertz (1 MHz = 1,000 KHz = 1,000,000 Hz). |
| MIDI : Musical Instrument Digital Interface. |
| MIME : Multipurpose Internet Mail Extensions. |
| MIP : Multum In Parvum texture mapping. |
| MIPS : Millions of Instructions per Second. |
| MLA : Modern Languages Association. |
| MLPPP : MultiLink Point to Point Protocol. |
| MMA : MIDI Manufacturer's Association. |
| MMVF : MultiMedia Video Format (NEC DVD). |
| MMX : Intel Pentium/Pentium Pro CPU MultiMedia eXtensions. |
| MMX2 : Intel Pentium II CPU MultiMedia eXtensions 2nd generation. |
| MO : MagnetoOptical. |
| modem : MOdulator/DEModulator (data to analog converter/transmitter/receiver). |
| MOV : QuickTime MOVie file (Apple). |
| MP3 :MPEG-1 Audio Layer 3 compression/format standard. |
| MPC : Multimedia Personal Computer. |
| MPEG : Motion Picture Expert Group |
| MPEG-1 : Motion Picture Expert Group 1 video compression standard. |
| MPEG-2 : Motion Picture Expert Group 2 video compression standard. |
| MPG : Motion Picture Expert Group compressed image file standard |
| MPGA : Micro Pin Grid Array (370 pin Intel CPU). |
| MR : MagnetoResistive head technology (HDD). |
| MRAM : Magnetic Random Access Memory (IBM). |
| MRX : MagnetoResistive EXtended head technology (IBM HDD). |
| µs : Microsecond (1/1,000,000 = 1 millionth of a second). |
| MS : MicroSoft Corporation |
| MS-DOS : MicroSoft Disk Operating System. |
| MSCDEX : MicroSoft Compact Disc EXtensions device driver (MSCDEX.EXE). |
| MSD : MicroSoft Diagnostics (MSD.EXE). |
| MSKB : MicroSoft Knowledge Base |
| MSP : MicroSoft Paint picture file. |
| MSRP : Manufacturer Suggested Retail Price. |
| MSS : Maximum Segment Size (Internet protocol). |
| MTBF : Mean Time Between Failures. |
| MTT : MultiTransaction Timer (PCI). |
| MTU : Maximum Transmission Unit (Internet protocol). |
| MUD : MultiUser Domain. |
| MVA : Multidomain Vertical Alignment technology (LCD screen). |
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0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| NC : Network Computer. |
| NDIS : Network Driver Interface Specification layer. |
| NetRoom : Helix Software 386 Expanded Memory Manager (RM386.EXE) |
| NFS : Network File System. |
| NGI : Next Generation Internet foundation. |
| NIC : (1) Network Interface Card. |
| NIC : (2) Networked Information Center. |
| NIST : National Institute of Standards and Technology |
| NLP : Natural Language Processing. |
| NNTP : Network News Transfer Protocol. |
| NOS : Network Operating System. |
| ns : Nanosecond (1/1,000,000,000 = 1 billionth of a second). |
| NSR : NVidia Shading Rasterizer (GeForce2 GTS chipset). |
| NTFS : Windows NT File System standard (32-bit). |
| NTSC : National Television Systems Committee (USA TV standard: 525 lines). |
| NVRAM : Non Volatile Random Access Memory. |
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0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| OAW : Optically Assisted Winchester technology (Seagate hard drive). |
| OCR : = Optical Character Recognition. |
| ODBC : = Open DataBase Connectivity. |
| OEM : = Original Equipment Manufacturer. |
| OGL : = OpenGL (see below). |
| OLE : = Object Linking and Embedding. |
| OLGA : = Organic Land Grid Array (Intel Pentium III CPU). |
| OOB : = Out Of Band. |
| OpenGL : = Silicon Graphics Open standard Graphical Language (32-bit 3D graphics architecture layout). |
| OpenGVS : Open Gemini Visual System 3D APIs standard. |
| OPS : Open Profiling Standard. |
| OS : Operating System. |
| OS/2 : IBM Operating System/2. |
| OSD : Open Software Distribution. |
| OSR1 : OEM Service Release 1 (Microsoft Windows 95 version 4.00.950 a: 1st release, upgraded with SP1). Retail + OEM. |
| OSR2 : OEM Service Release 2 (Microsoft Windows 95 version 4.00.950 B/C: 2nd release). OEM only. |
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0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| P II : Intel Pentium II CPU (80686 Klamath/Deschutes/Xeon). |
| P III : Intel Pentium III CPU (80686 Katmai/Coppermine/Xeon). |
| P5 : Intel Pentium/Pentium Pro CPU (80586). |
| P6 : Intel Pentium II/III CPU (80686). |
| PAL : Phase Alternate Line (European TV standard: 625 lines). |
| PAP : Password Authentication Protocol. |
| PBC : Pipeline Burst Cache. |
| PBM : Portable BitMap UNIX picture file. |
| PBSRAM : Pipeline Burst Static Random Access Memory (CPU L2 cache). |
| PC : Personal Computer. |
| PC99 : Intel/Microsoft PC 1999 System Design Guide. |
| PCB : Printed Circuit Board. |
| PCD : Kodak Photo CD image file. |
| PCI : Peripheral Component Interconnect bus architecture: 32-bit, 33/66 MHz (Intel). |
| PCI 2.1 : Peripheral Component Interconnect 2.1 standard: 32-bit, 33/66 MHz (Intel). |
| PCI 2.2 : Peripheral Component Interconnect 2.2 standard: 32-bit, 33/66/133 MHz (Intel). |
| PCI-X : Peripheral Component Interconnect eXtended bus architecture: 64-bit, 133 MHz (Intel/Compaq/HP/IBM). |
| PCL : Printer Control Language. |
| PCM : Pulse Code Modulation. |
| PCMCIA : Personal Computer Memory Card International Association. |
| PCS : Personal Communications Service. |
| PCX : Zsoft PC Paintbrush Picture file. |
| PDA : Personal Digital Assistant. |
| PDF : Portable Document Format file (Adobe Acrobat). |
| PDP : Parallel Data Processing (Intel I-740). |
| pel : Picture ELement: RGB 3 dot pattern (color TV). Also pixel. |
| Pentium : Intel Pentium CPU (80586). |
| Pentium Pro : Intel Pentium Pro CPU (80586). |
| Pentium II : Intel Pentium II CPU (80686 Klamath/Deschutes/Xeon). |
| Pentium III : Intel Pentium III CPU (80686 Katmai/Coppermine/Xeon). |
| PERL : Practical Extraction and Report Language. |
| PFPT : Pure Flat Picture Tube. |
| PGM : Portable GrayMap UNIX picture file. |
| PIC : (1) Programmable Interrupt Controller. |
| PIC : (2) Lotus PICtor/PC Paint picture file. |
| PIF : Program Information File (Microsoft Windows). |
| PIM : Personal Information Manager. |
| PING : Packet InterNet Groper. |
| PIO : Programmed Input/Output. |
| pixel : PIcture ELement: RGB 3 dot pattern (color CRT). Also pel. |
| PLEDM : Phase-state Low Electron Drive Memory (Hitachi). |
| PLGA : Plastic Land Grid Array (Intel Pentium II CPU). |
| PLL : Phase Locked Loop (CPU clock multiplier chip). |
| PMTU : Path Maximum Transmission Unit (Internet protocol). |
| PNG : Portable Network Graphics file. |
| PnP : Plug and Play standard. |
| POP : (1) Post Office Protocol. |
| PoP : (2) Point of Presence. |
| POP3 : Post Office Protocol 3 standard. |
| POST : Power On Self Test (BIOS). |
| POTS : Plain Old Telephone Service. |
| PPGA : Plastic Pin Grid Array (370 pin Intel CPU). |
| PPI : Precise Pixel Interpolation (Intel I-740). |
| PPM : Portable PixelMap UNIX picture file. |
| PPP : Point to Point Protocol. |
| PPTP : Point to Point Tunneling Protocol. |
| PRI : Primary Rate Interface. |
| PRML : Partial Response Maximum Likelihood (hard drive). |
| PRN : PRiNter port. |
| PS/2 : IBM Personal System/2. |
| PSD : RGB/indexed PhotoShop image file (Aldus). |
| PSTN : Public Switched Telephone Network. |
| PVR : Personal Video Recorder (TV to digital). |
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0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| QBE : Query By Example. |
| QDR-SDRAM : Quad Data Rate Synchronous Dynamic Random Access Memory. |
| QEMM : Quarterdeck Systems 386 Expanded Memory Manager (QEMM386.SYS). |
| QOS : Quality Of Service. |
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0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| RAID : Redundant Array of Inexpensive (Independent) Disks. |
| RAM : Random Access Memory. |
| RAMDAC : Random Access Memory Digital to Analog Converter. |
| RARP : Reverse Address Resolution Protocol. |
| RAS : (1) Sun Microsystems Raster image file. |
| RAS : (2) Row Access Strobe. |
| RAS : (3) Remote Access Service (Microsoft Windows NT/2000). |
| RAVE : Rendering Acceleration Virtual Engine (Apple). |
| RAW : Unencoded pixel data image file. |
| RDF : Resource Description Framework (Netscape Aurora). |
| RDRAM : Rambus Dynamic Random Access Memory. |
| REG : REGistry text/ASCII file (Microsoft Windows 9x/NT/2000/ME). |
| Registry : Microsoft Windows 9x/NT/2000/MERegistry database. |
| RegEdit : Microsoft Windows 9x/NT/2000/ME Registry Editor (REGEDIT.EXE). |
| RegEdt32 : Microsoft Windows NT/2000 Registry Editor (REGEDT32.EXE). |
| RFC : Request for Comments. |
| RFI : Radio Frequency Interference. |
| RGB : Red Green Blue picture encoding. |
| RIMM : Rambus Inline Memory Module. |
| RISC : Reduced Instruction Set Computing (CPU). |
| RIVA : Real Time Interactive Video and Animation (NVidia 3D). |
| RLE : CompuServe/Microsoft Windows Run Length Encoded graphic file. |
| RM386 : Helix Software 386 Expanded Memory Manager (RM386.EXE). |
| ROM : Read Only Memory. |
| RPC : Remote Procedure Calls. |
| rpm : Rotations Per Minute. |
| RPTV : Rear Projection TeleVision. |
| RSA : Public Key Encryption algorithms (RSA Data Security). |
| RTC : Real Time Clock (BIOS). |
| RTF : Rich Text Format (Microsoft Word). |
| RWIN : Receive WINdow (Internet protocol). |
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0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| S3TC : S3 Texture Compression architecture (S3 Savage3D/2000). |
| SACD : Super Audio Compact Disc (Sony/Philips). |
| SBK : EMU Sound Font BanK v1.0 (Creative Labs SB sound cards). |
| SCSI : Small Computers System Interface standard. |
| SCSI-1 : Small Computers System Interface 1 specifications. |
| SCSI-2 : Small Computers System Interface 2 specifications. |
| SCSI-3 : Small Computers System Interface 3 specifications. |
| SDDS : Sony Dynamic Digital Sound (8 channel theatre surround sound standard). |
| SDK : Software Developers Kit. |
| SDRAM : Synchronous Dynamic Random Access Memory. |
| SDS : Satellite Data Service. |
| SDSL : Symmetrical Digital Subscriber Line modem. |
| SDX : Storage Data Acceleration (Western Digital). |
| SECAM : SEquential Couleur Avec Mémoire (French TV standard: 819 lines). |
| SECC : Single Edge Contact Cartridge (Intel Pentium II CPU). |
| SECC2 : Single Edge Contact Cartridge 2 (Intel Pentium III CPU). |
| SEL : Software Emulation Layer (Microsoft Direct3D). |
| SEPP : Single Edge Processor Package (Intel Celeron CPU). |
| Serial ATA : Ultra Serial ATA 1500 v1.0 Hard Disk Interface standard (1.5 Gb/sec). |
| SET : Secure Electronic Transaction standard. |
| SF2 : EMU Sound Font Bank v2.0 (Creative Labs SB sound cards). |
| SFN : Short File Name (8.3 = MS-DOS 16-bit). |
| SGI : Silicon Graphics Incorporated |
| SGML : Standard Generalized Markup Language (W3C). |
| SGRAM : Synchronous Graphics Random Access Memory. |
| SHDSL : Single pair High bit rate Digital Subscriber Line modem. |
| SIMD : Single Instruction Multiple Data (Intel Pentium MMX). |
| SIMM : Single In-line Memory Module. |
| SLC : Subscriber Line Charge. |
| SLDRAM : Synchronous Link Dynamic Random Access Memory (Hyundai). |
| SL-DRAM : Synchronous Layout Dynamic Random Access Memory (Siemens/Micron). |
| SLI : Scan Line Interleave technology (3Dfx Voodoo2). |
| SLIP : Serial Line Internet Protocol. |
| SLM : Spatial Light Modulator. |
| SMART : Self Monitoring Analysis Reporting Technology standard. |
| SMIL : Synchronized Multimedia Integration Language (W3C). |
| SMP : Symmetrical MultiProcessing standard. |
| SMPTE : Society of Motion Picture and Television Engineers |
| SMTP : Simple Mail Transfer Protocol. |
| S/NR : Signal to Noise Ratio. |
| SO-DIMM : Small Outline Dual Inline Memory Module connector. |
| SPD : Serial Presence Detection (EEPROM). |
| S/PDIF : Sony/Philips Digital Interchange Format. |
| SPI-2 : SCSI Parallel Interface 2 standard (SCSI-3). |
| SPI-3 : SCSI Parallel Interface 3 standard (SCSI-3). |
| SPP : Standard Parallel Port. |
| SQL : Structured Query Language. |
| SRAM : Static Random Access Memory. |
| sRGB : 32-bit standard Red Green Blue color encoding (Microsoft/Hewlett Packard). |
| sRGB64 : 64-bit standard Red Green Blue double-precision color encoding (Microsoft/Hewlett Packard). |
| SSA : erial Storage Architecture bus/interface. |
| SSE : Streaming SIMD Extensions (Intel Pentium III Katmai/Coppermine). |
| SSL : Secure Sockets Layer. |
| SSR : Super Scalar Rendering (3D video). |
| STA : SCSI Trade Association. |
| STD/VR : STanDard Voltage Regulator (CPU). |
| STM : Scanning Tunneling Microscope. |
| SVGA : Super Video Graphics Array standard. |
| SX : X86 Intel CPU without FPU (386/SX, 486/SX). |
| Sync SRAM : Synchronous burst Static Random Access Memory (CPU L2 cache). |
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0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| TAPI : Telephony Application Programming Interface. |
| TB : TeraByte (1 TB = 1,024 GigaBytes = 1,048,576 MegaBytes). |
| T-Buffer : Multiple Frame Buffer rendering engine (3Dfx 3D video). |
| TCL : Transform, Clipping & Lighting (ATI 3D video). |
| TCO : Total Cost of Ownership. |
| TCP : Transmission Control Protocol. |
| TCP/IP : Transmission Control Protocol/Internet Protocol. |
| TEC : ThermoElectric Cooler (Peltier effect). |
| Texel : Bilinear TEXtured pixEL (3D video). |
| TFT : Thin Film Transistor (active matrix display). |
| TFTP : Trivial File Transfer Protocol. |
| TGA : TrueVision Graphic file (Targa). |
| THD : Total Harmonic Distortion. |
THX : LucasFilm Home/Cinema Theatre Hi-Fi Dolby Digital Surround audio/video standard
(RE: George Lucas' first movie: "THX 1138"). |
| TIFF : Tagged Image File Format (Aldus). |
| T&L : Transform & Lighting (3D video). |
| TMM : Terabit Molecular Memory technology (Toshiba DVD). |
| TNT : TwiN Texel processing engine (NVidia RIVA TNT 2D/3D). |
| TNT2 : TwiN Texel 2 processing engine (NVidia RIVA TNT2 2D/3D). |
| TPU : Texture Processing Unit (3Dfx Voodoo/Voodoo2/Voodoo3). |
| TSR : Terminate and Stay Resident program/device/driver. |
| TTF : True Type Font. |
| TTL : Time To Live (Internet protocol). |
| TWI : True Web Integration (Microsoft). |
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0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| UAE : Unrecoverable Application Error. |
| UART : Universal Asynchronous Receiver Transmitter. |
| U-ATA : Ultra Advanced Technology Attachment (EIDE/ATA disk controller/drive). |
| UCE : Unsolicited Commercial Email. |
| UDF : Universal Disk Format (Compact Disk). |
| UDMA : Ultra Direct Memory Access (EIDE/ATA disk controller/drive). |
| UDMA/33 : Ultra DMA/Ultra ATA 33.33 MB/second tranfer rate (EIDE/ATA hard disk controller/drive standard). |
| UDMA/66 : Ultra DMA/Ultra ATA 66.66 MB/second tranfer rate (EIDE/ATA hard disk controller/drive standard). |
| UDMA/100 : Ultra DMA/Ultra ATA 100 MB/second tranfer rate (EIDE/ATA hard disk controller/drive standard). |
| UDP : User Datagram Protocol. |
| UDSP : Uniprocessor Digital Signal Processor Drive Electronics based architecture. |
| UHF : Ultra High Frequency. |
| Ultra160/m SCSI : Ultra3 SCSI standard (160 MB/s burst transfer rate). |
| Ultra2b SCSI : Ultra2 SCSI standard (80 MB/s burst transfer rate). |
| Ultra DMA : Ultra Direct Memory Access (EIDE drive controller). |
| Ultra SCSI : Ultra1 SCSI standard (40 MB/s burst transfer rate). |
| UMA : Upper Memory Area. |
| UMB : Upper Memory Block. |
| UMR : Upper Memory Region. |
| UNC : Uniform Naming Convention. |
| UNIX : MultiUser Network Operating System. |
| UPnP : Universal Plug and Play (future standard). |
| UPS : Uninterruptible Power Supply. |
| URI : Uniform Resource Identifier. |
| URL : Uniform Resource Locator. |
| URM : Universal Retention Mechanism (Slot 1 CPU). |
| USB : Universal Serial Bus standard. |
| USB2 : Universal Serial Bus version 2.0 standard. |
| USENET : USEr NETwork (newsgroups). |
| USR : U. S. Robotics (3Com modem brand). |
| UUE : Uniform Resource Locator UNIX Encoded. |
| UUENCODE : Unix to Unix Encoding. |
|
0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| V.90 : ITU PCM 56 Kbps analog modem transfer standard. |
| V.92 : ITU PCM 56 Kbps analog modem transfer standard. |
| VAR : Value Added Reseller. |
| VAT : Virtual Allocation Table (Compact Disk). |
| VBE : VESA BIOS Extensions. |
| VBI : Vertical Blanking Interval. |
| VCM : Virtual Channel Memory. |
| VCP : Video Cassette Player. |
| VCPI : Virtual Control Program Interface. |
| VCR : Video Cassette Recorder. |
| VDSL : Variable Digital Subscriber Line modem. |
| VESA : Video Electronics Standards Association |
| VFAT : Virtual File Allocation Table (Microsoft Windows). |
| VFIR : Very Fast InfraRed protocol (Hewlett Packard). |
| VfW : Video for Windows. |
| VGA : Video Graphics Array standard. |
| VHD : Very High Density connector standard (Centronics). |
| VHF : Very High Frequency. |
| VIS : Visual Image Size. |
| VLB : VESA Local Bus (VL bus). |
| VLM : Very Large Memory addressing (Intel Merced). |
| VLSI : Very Large Scale Integration. |
| VMM : Virtual Memory Manager. |
| VoIP : Voice over Internet protocol. |
| VPN : Virtual Private Network. |
| VR : (1) Virtual Reality. |
| VR : (2) Voltage Regulator (CPU). |
| VRE : Voltage Regulator Enhanced (MMX/SSE/KNI/3DNow! CPU dual voltage). |
| VRAM : Video Random Access Memory. |
| VRM : Voltage Regulator Module. |
| VRML : Virtual Reality Modeling Language. |
| VSA-100 : Voodoo Scalable Architecture (3Dfx Napalm 3D chipset). |
| VSM : Virtual Storage Management (Microsoft Windows). |
| VXD : Virtual eXtended (everything) device Driver (Microsoft Windows). |
|
0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| W3C : World Wide Web Consortium |
| WAIS : Wide Area Information Server. |
| WAN : Wide Area Network. |
| WAR : Wide Aspect Ratio display. |
| WBEM : Web Based Enterprise Management Initiative. |
| WDM : Win32 Driver Model. |
| WfM : Wired for Management. |
| WfWG : Microsoft Windows for WorkGroups 3.1x. |
| Win16 : Microsoft Windows 16-bit OS. |
| Win2000 : Microsoft Windows 2000 (formerly NT 5.0). |
| Win2K : Microsoft Windows 2K (2000). |
| Win31 : Microsoft Windows 3.1x. |
| Win32 : Microsoft Windows 32-bit OS. |
| Win32s : Microsoft Windows 32-bit extensions for Windows/WfWG 3.1x 16-bit. |
| Win95 : Microsoft Windows 95 (4.0x.xxxx). |
| Win98 : Microsoft Windows 98 (4.1x.xxxx). |
| WinME : Microsoft Windows Millennium Edition (4.9x.xxxx). |
| WinNT : Microsoft Windows NT 3.xx/4.0x (New Technology). |
| WIP : Web Interoperability Pledge (ZDNet) |
| WMF : Microsoft Windows MetaFile. |
| WORM : Write Once Read Many (CD-R). |
| WOSA : Windows Open Services Architecture. |
| WPE : Windows Protection Error (Microsoft Windows). |
| WPG : WordPerfect Graphic file. |
| WRAM : Windows Random Access Memory. |
| WTX : Workstation Advanced Technology EXtended (Intel motherboard form factor). |
| WWIF : World Wide InterFace. |
| WWW : World Wide Web. |
| WYSIWYG : What You See Is What You Get. |
|
0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| x2 : 3COM/US Robotics 56 kbps analog modem transfer standard. |
| X86 : Intel X86 CPU (family compatible). |
| X87 : Intel X87 FPU (family compatible). |
| Xeon : Intel Pentium II/III Xeon CPU (80686). |
| XHTML : EXtensible Hypertext Markup Language (W3C). |
| XLL : EXtensible Link Language (W3C). |
| XML : EXtensible Markup Language (W3C). |
| XMM : EXtended Memory Manager. |
| XMS : EXtended Memory Specifications. |
| XSL : EXtensible Style Language (W3C). |
| XT : EXtended Technology (Intel motherboard form factor). |
| XVGA : EXtended Video Graphics Array. |
| Y2K Year 2000. |
| ZAK : Zero Administration Kit for Windows NT workstations. |
| ZAW Zero Administration initiative for Windows. |
| Z-buffer : Third (3rd) dimension/depth/z axis memory (3D video). |
| ZIF : Zero Insertion Force (CPU socket). |
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