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AAC: Advanced Audio
Coding. 
ABI: Application Binary
Interface. 
AHA: Accelerated Hub
Architecture. 
ALGOL: Algorithmic Language. 
AJAX: Asynchronous JavaScript and
XML. 
ABR: Available Bit Rate. 
AD: Active Directory. 
ADC: Analog – to – Digital
Converter / Apple Display Connector (DVI Variant). 
ALU: Arithmetic Logical Unit. 
AMD: Advanced Micro Devices. 
AMR: Audio Modern Riser. 
APCI: Application – Layer
Protocol Control Information. 
ASP: Application Service Provider
/ Active Server Pages. 
AST: Abstract Syntax Tree. 
ATA: Advanced Technology
Attachment. 
API: Application Programming
Interface. 
AVC: Advanced Video Coding. 
AVI: Audio Video Interleaved. 
AWT: Abstract Window ToolKit. 
ARPANET: Advanced Research
Projects Agency Network. 
ASCII: American Standard Code for
Information Interchange. 
ATM: Asynchronous Transfer Mode. 
BAL: Basic Assembly Language. 
BER: Bit Error Rate. 
BFD: Binary File Descriptor. 
BGP: Border Gateway Protocol. 
BiDi: Bi-Directional. 
BIN: Binary. 
BASIC: Beginner All-Purpose
Symbolic Instruction Code. 
BCD: Binary Coded Decimal. 
BINAC: Binary Automatic Computer.
BIOS: Basic Input Output System. 
BPS: Bits Per Second. 
BMP: Basic Multilingual Plane. 
BT: BitTorrent / Bluetooth. 
BW: Bandwidth. 
BIT: A Binary Digit. 
BLOB: Binary Large Object. 
BLOG: Web Log. 
CAI: Computer – Aided
Instruction. 
CAQA: Computer – Aided Quality
Assurance. 
CC: C Compiler / Carbon Copy. 
CAD: Computer – Aided Design. 
CAE: Computer – Aided
Engineering. 
CD: Compact Disk / Change
Directory. 
CDMA: Code Division Multiple
Access. 
CD-RW: Compact Disk – Rewritable.
CG: Computer Graphics. 
CGA: Color Graphics Array. 
CD-R: Compact Disk – Recordable. 
CD-ROM: Compact Disk – Read –
Only Memory. 
CGI: Common Gateway Interface /
Computer – Generated Imaginary. 
CMOS: Complementary Metal – Oxide
Semiconductor. 
CLI: Command Line Interface. 
CNC: Computer Numerical Control. 
COMPUTER : Communication Operating Machine 
                        Particular User Trade Education Research
COBOL: Common Business – Oriented
Language. 
CIFS: Common Internet File
System. 
CIM: Common Information Model. 
CPU: Central Processing Unit. 
CRS: Computer Reservation System.
CTR: Cathode Ray Tube. 
CTL: Computation Tree Logic. 
CTS: Clear to Send. 
CUA: Common User Access. 
CSI: Common System Interface. 
CSV: Comma – Separated Values. 
CTCP: Client – to – Client
Protocol. 
DAT: Digital Audio Tape. 
DB: DataBase. 
DCC: Direct Client – to – Client. DDR: Double Data
Rate. 
DES: Data Encryption Standard. 
DFD: Data Flow Diagram. 
DAO: Data Access Objects. 
DAP: Direct Access Protocol. 
DFS: Distributed File System. 
DBA: Database Administrator. 
DBMS: Database Management System.
DHTML: Dynamic Hyper Text Markup
Language. 
DIVX: Digital Video Express. DVE: Digital Video
Effects. 
DNS: Domain Name System. 
DOS: Disk Operating System. 
DPI: Dots per INCH. 
DOS-PMI: Disk Operating System –
Protected Mode Interface. 
DLL: Dynamic Link Library. 
DLP: Digital Light Processing. 
DMA: Direct Memory Access. 
DSL: Digital Subscriber Line /
Domain – Specific Language. 
DVD-RW: Digital Versatile Disk –
Rewritable. 
DVI: Digital Visual Interface. 
DVR: Digital Video Recorder. 
DVD-R: Digital Versatile Disk –
Recordable. 
DBSN: Database Source Name
(ODBC). 
DTE: Data Terminal Equipment. 
DTR: Data Terminal Ready. 
DVD: Digital Versatile Disk /
Digital Video Disk. 
DVD-ROM: Digital Versatile Disk –
Read Only Memory. 
ECU: Extended Unix Code. 
EST: Electrostatic Discharge. 
EXE: Executable. 
EBCDIC: Extended Binary Coded
Decimal Interchange Code. 
EEPROM: Electronically Erasable
Programmable Read Only memory. 
ENIAC: Electronic Numerical
Integrator and Computer. 
EOF: End of File. 
EOL: End of Line. 
EOM: End of Message. 
EPROM: Erasable Programmable Read
Only Memory. 
EID: Electronic ID Card. 
EIGRP: Enhanced Interior Gateway
Routing Protocol. 
ELF: Executable and Linkable
Format. 
ELM: Electronic Mail. 
FS: File System. 
FSB: Front Side Bus. 
FTP: File Transfer Protocol. 
FXP: File Exchange Protocol. 
FAT: File Allocation Table. 
FAQ: Frequently Asked Questions. 
FDC: Floppy Disk Controller. 
FHS: Filesystem Hierarchy
Standard. 
FCS: Frame Check Sequence. 
FPU: Floating Point Unit. 
FDD: Floppy Disk Drive. 
FDMA: Frequency-Division Multiple
Access. 
FIFO: First In First Out. 
Gb: Gigabit. 
GPRS: General Packet Radio
Service. 
GPU: Graphics Processing Unit. 
GUI: Graphical User Interface. 
GB: Gigabyte. 
GIGO: Garbage In Garbage Out. 
GPL: General Public License. 
GCR: Group Code Recording. 
GDI: Graphics Device Interface. 
GIF: Graphics Interchange Format.
HTM: Hierarchical Temporal
Memory. 
HTML: Hypertext Markup Language. 
HTTP: Hypertext Transfer
Protocol. 
HTTPD: Hypertext Transfer
Protocol Daemon. 
HAL: Hardware Abstraction Layer. 
HCI: Human-Computer Interaction. 
HID: Human Interface Device. 
HIG: Human Interface Guidelines. 
HP: Hewlett-Packard. 
HPFS: High-Performance File
System. 
HT: Hyper-Threading. 
HD: High Density. 
HDD: Hard Disk Drive. 
HD DVD: High Definition DVD. 
HDL: Hardware Description
Language. 
HHD: Hybrid Hard Drive. 
HTX: Hyper Transport Expansion. 
HURD: Hird of Unix-Replacing
Daemons. 
HVD: Holographic Versatile Disk. 
HZ: Hertz. 
ICP: Internet Cache Protocol. 
ICT: Information and
Communication Technology. 
IDL: Interface Definition
Language. 
IDE: Integrated Development
Environment / Integrated Drive 
Electronics. 
IE: Internet Explorer. 
IGMP: Internet Group Management
Protocol. 
IMAP: Internet Message Access
Protocol. 
I/O: Input / Output. 
IP: Internet Protocol. 
IGRP: Interior Gateway Routing
Protocol. 
IBM: International Business
Machines. 
IC: Integrated Circuit. 
ICMP: Internet Control Message
Protocol. 
IHV: Independent Hardware Vendor.
IIOP: Internet Iner-Orb-Protocol.
IIS: Internet Information Server.
IM: Instant Messaging. 
IPC: Inter-Process Communication.
IPP: Internet Printing Protocol. 
IPsec: Internet Protocol
Security. 
IPTV: Internet Protocol
Television. 
IPX: Internetwork Packet
Exchange. 
IRC: Internet Relay Chat. 
IrDA: Infrared Data Association. 
IRP: I/O Request Packet. 
IRQ: Interrupt Request. 
ISC: Internet Storm Center. 
ISO: International Organisation
for Standardization. 
IT: Information Technology. 
ITU: International
Telecommunication Union. 
ISOC: Internet Society. 
ISP: Internet Service Provider. 
ISR: Interrupt Service Routine. 
ISV: Independent Software Vendor.
JPEG: Joint Photographic Experts
Group. 
JRE: Java Runtime Environment. 
JS: Java Script. 
JSON: Java Script Object
Notation. 
JSP: Java Server Pages. 
J2EE: Java 2 Enterprise Edition. 
J2ME: Java 2 Micro Edition. 
J2SE: Java 2 Standard Edition. 
JDK: Java Development KIT. 
JUG: Java User Group. 
KHz: Kilohertz. 
KB: Kilobyte. 
Kb: Kilobit. 
KBPS: Kilobit per second. 
KVM: Keyboard, Video, Mouse. 
LSB: Least Significant Bit. 
LAN: Local Area Network. 
LED: Light-Emitting Diode. 
LIFO: Last In First Out. 
MBCS: Multi Byte Character Set. 
MBR: Master Boot Record. 
MDI: Multiple Document Interface.
MICR: Magnetic Ink Character
Recognition. 
MAN: Metropolitan Area Network. 
MANET: Mobile Ad-Hoc Network. 
Mb: Megabit. 
MB: Megabyte. 
MIDI: Musical Instrument Digital
Interface. 
MMU: Memory Management Unit. 
MMX: Multi-Media Extensions. 
MNG: Multiple-image Network
Graphics. 
MOSFET: Metal-Oxide Semiconductor
Field Effect Transistor. 
MIMO: Multiple-Input Multiple
Output. 
MIPS: Million Instructions Per
Second. 
MIME: Multipurpose Internet Mail
Extensions. 
MHz: Megahertz. 
MPEG: Motion Pictures (coding)
Experts Group. 
MVS: Multiple Vendor System. 
MPL: Mozilla Public License. 
MSB: Most Significant Bit. 
MS-DOS: Microsoft Disk Operating
System. 
NOP: NO Operation. 
NOS: Network Operating System. 
NT (Windows): New Technology. 
NTFS: NT File System. 
NFS: Network File System. 
NIC: Network Interface
Controller. 
NIO: New I/O. 
NMI: Non-Maskable Interrupt. 
NNTP: Network News Transfer
Protocol. 
NTP: Network Time Protocol. 
NVRAM: Non-Volatile Random Access
Memory. 
OS: Operating System. 
OSS: Open Source Software. 
OCR: Optical Character Reader. 
OOP: Object-Oriented Programming.
OPML: Outline Processor Markup
Language. 
PATA: Parallel ATA. 
PC: Personal Computer. 
PCB: Printed Circuit Board. 
PC DOS: Personal Computer Disk
Operating System. 
P2P: Peer-To-Peer. 
PAN: Personal Area Network. 
PAP: Password Authentication
Protocol. 
PCI: Peripheral Component
Interconnect. 
PCIe: PCI Express. 
PCL: Printer Command Language. 
PERL: Practical Extraction and
Reporting Language. 
PIO: Programmed Input/Output. 
PLC: Power Line Communication /
Programmable Logic Controller. Pnp: Plug-and-Play. 
PGA: Pin Grid Array. 
PHP: PHP: Hypertext Preprocessor.
PIC: Peripheral Interface
Controller / Programmable Interrupt 
Controller. 
PINE: Program for Internet News
& Email. 
PoE: Power Over Ethernet. 
POST: Power-On Self Test. 
PPC: Power PC. 
PPI: Pixels Per Inch. 
PPP: Point-to-Point Protocol. 
PPPoA: PPP over ATM. 
PPPoE: PPP over Ethernet. 
PPTP: Point-to-Point Tunneling
Protocol. 
PSU: Power Supply Unit. 
QFP: Quick File Access. 
QDR: Quad Data Rate. 
QFP: Quad Flat Package. 
QoS: Quality of Service. 
RAIT: Redundant Array of
Inexpensive Tapes. 
RAM: Random Access Memory. 
RARP: Reverse Address Resolution
Protocol. 
RAD: Rapid Application
Development. 
RADIUS: Remote Authentication
Dial In User Service. 
RAID: Redundant Array of
Independent Disks. 
RDBMS: Relation Database
Management System. 
RDF: Resource Description Framework.
REEAL: Recursive Functions
Algorithmic Language. 
RF: Radio Frequency. 
RGB: Red, Green, Blue (RGBA– Red,
Green, Blue, Alpha). 
RTOS: Real Time Operating System.
RIP: Routing Information
Protocol. 
ROM: Read Only Memory. 
ROMB: Read-Out Motherboard. 
ROM-DOS: Read Only Memory-Disk
Operating System. 
SDL: Simple Direct Media Layer. 
SDN: Service Delivery Network. 
SDR: Software-Defined Radio. 
SAN: Storage Area Network. 
SATA: Serial ATA. 
SAX: Simple API of XML. 
SBP-2: Serial Bus Protocol 2. 
SBU: Standard Build Unit. 
SCSI: Small Computer System
Interface. 
SDRAM: Synchronous Dynamic Random
Access Memory. 
SFTP: Secure FTP/Simple File
Transfer Protocol. 
SHDSL: Single-pair High-speed
Digital Subscriber Line. 
SPI: Serial Peripheral Interface.
SQL: Structured Query Language. 
SUS: Single UNIX Specification. SVD: Structured VLSI
Design. 
SVG: Scalable Vector Graphics. 
SIMD: Single Instruction,
Multiple Data. 
SIMM: Single InLine Memory
Module. 
SMBIOS: System Management BIOS. 
SMTP: Simple Mail Transfer
Protocol. 
SP: Service Pack. 
SVGA: Super Video Graphics Array.
TDMA: Time Division Multiple
Access. 
tmp: Temporary. TTA: True Tap Audio. 
TTF: True Type Font. 
TB: TeraByte. 
TCP: Transmission Control
Protocol. 
TCP/IP: Transmission Control
Protocol / Internet Protocol. 
TTL: Transistor-Transistor-Logic.
TTS: Text-to Speech. 
TTY: Teletype. 
UEFI: Unified Extensible Firmware
Interface. 
UI: User Interface. 
UL: Upload. 
UAC: User Account Control. 
UART: Universal Asynchronous
Receiver Transmitter. 
UPS: Uninterruptible Power
Supply. 
URI: Uniform Resource Identifier.
URL: Uniform Resource Locator. 
URN: Uniform Resource Name. 
USB: Universal Serial Bus. 
UTF: Unicode Transformation
Format. 
UTP: Unshielded Twisted Pair. 
VAR: Variable. 
VB: Visual Basic. 
VBA: Visual Basic for
Applications. 
VBS: Visual Basic Script. 
VFAT: Virtual FAT. 
VFS: Virtual File System. 
VGA: Video Graphics Array. 
VT: Video Terminal. 
VGCT: Video Graphics Character
Table. 
VLAN: Virtual Local Area Network.
VM: Virtual Memory. 
VOD: Video On Demand. 
VoIP: Voice Over IP. 
VPN: Virtual Private Network. 
VPU: Visual Processing Unit. 
WAN: Wide Area Network. 
WAP: Wireless Access Protocol. 
Wi-Fi: Wireless Fidelity. 
WinFS: Windows Future Storage. 
WSDL: Web Services Description
Language. 
WUSB: Wireless Universal Serial
Bus. 
WWAN: Wireless Wide Area Network.
WWID: World Wide Identifier. 
WWW: World Wide Web. 
WINS: Windows Internet Naming
Service. 
WLAN: Wireless Local Area
Network. 
WMA: Windows Media Audio. 
WMV: Windows Media Video. 
WOL: Wake-on-Lan. 
WOM: Wake-on-Modem. 
WPA: Wi-Fi Protected Access. 
XAML: Extensible Application
Merkup Language. 
XHTML: Extensible Hypertext
Markup Language. 
XSL: Extensible StyleSheet
Language. 
XSL-FO: Extensible StyleSheet
language Formatting Objects. 
XSLIT: Extensible StyleSheet
language Transformations. 
XUL: XML User Interface Language.
XML: Extensible Markup Language. 
XNS: Xerox Network Services. 
XMMS: X MultiMedia System. 
ZIFS: Zero Insertion Force
Socket. 
ZISC: Zero Instruction Set
Computer. 
ZMA: Zone Multicast Address. 
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