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B
BDC	Backup Domain Controller
BEDO	Burst Extended Data Out
BGA	Ball Grid Array (Micro processor type) has more pins than PGA upto 400 pins
BIOS	Basic Input Output System
BIT	Binary digit
BSI	British Standard Institute

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C
CAD	Computer Aided Design
CAM	Computer Aided Menufacturer
CAP	Carrierless Amplitude Phase
CBR	Constant Bit Rate
CCD	Charge Coupled Device
CCIR	International Radio Consultative Comittee
CCITT	International Telegraph & Telephone Consultative Comittee
CD	Compact Disk
CDFS	Copact Disk File System
CDMA	Code Division Multiple Access
CGA	Color Graphic Adapter
CGI	Common Gate way Interface
CHAP	Challenge Handshake Authorization Protocol
CHS	Cylinder Head Sector
CICS	Costumer Information Control System
CISC	Complex Instruction Set Computer
CLNS	ConnectionLess-mode Network System
CMOS	Complementry Metal Oxide Semiconductor
CMTS	Cable Modem Termination System
Codec	Coding & decoding
COM	Computer Output on Micro film
CONS	Connection Oriented Network Service
CRC	Cyclic Redundancy Check
CRT	Cathode Rays Tube
CSMA/CD	Carrier Sense Multiple Access / Collision Detection
CTC	Computer Technical Corporation
CTMS/ CMTS	Cable Modem Terminal System
CTS	Clear to send
CVS	Computer Vision Syndrome
SCR	Silicon control rectifier

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D
DAC	Digital to Analogue Converter
DAP	Data Access Protocol
DASP	Drive Active / Slave Present
DAT	Digital Audio Tape
DDCMP	Digital Data Communication Message Protocol
DDM	Distributed Data Communication Management Protocol
DDP	Datagram Deleivery Protocol
DDRAM	Double Data RAM (In one single cycle can read & write used in PIV)
DEC	Digital Equipment Corporation
DES	Data Encryption Standard
DHCP	Dynamic Host Configuration Protocol
DIA	Document Interchange Architecture protocol
DIM	D
DIMM	Dual In Line Memory Model
DIP	Dual In line Package
DLC	Data Link Control protocol
DLL	Dynmaic Link Library
DMA	Direct Memory Access
DMT	Discrete Multi Tone
DNA	Digital Network Architecture protocol
DNS	Doman Name Service / Domain Naming System
DOCSIS	Data Over Cable Service Interface Specification
DOD	Department Of Defence protocol
DOM	Dance On Microcomputer
DOS	Disk Operating System
DRAM	Dynamic random access memory
DSB	Double Side Band
DSBFC	Double Side Band Full Carrier
DSBSC	Double Side Band Suppress Carrier
DSL	Digital Subscriber Line
DSR	Data Set Ready
DSTN	dual scan twisted nematics
DSU	Digital Service Unit
DTE	Data Terminal Equipment
DTMF	Dual Tone Multi Frequency
DTR	Data Terminal Relay
DVD	Digital Video Disk / Digital Versatile Disk
DVM	Digital VoltMeter
DWDM	Dense Wave Divivsion Multipexing / Dense Wavelenght Divivsion Multipexing

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E
EAROM	Electrically Alterable Read Only Memory
EBCDIC	Extended Binary Coded Decimal Interchange Code
ECP	Extended  Capabilities Port
EDGE	Enhance Data Global Evolution
EDO	Extended Data Out
EGA	Enhance Graphic Adapter
EIA	Electronic Industry Association
EISA	Extended Industry Standard Architecture
ELSI	Extra Large Scale Integration
EMI	ElectroMegnatic Interference
EMM	Expanded Memory Manager
EMS	Expanded Memory Specification / system
ENIAC	Electronic Numeric Integrator And Calculator
EPIC	Explicitly Parallel Instruction Computing
EPP	Extended Parallel Port
EPS	Encapsulated Post Script
ESDI	Enhanced Small Device Interface
ESN	Electronic Serial Number
ESP	Enhanced Serial port
EULA	End User Lisence Agrement

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F
FAT	File Allocation Table
FAQ	Frequently Asked Questions
FCC	Federal Communication Committee
FDD	Floppy Disk Drive
FDDI	Fiber Distribution Data Interface
FDM	Frequency Division Multiplexing
FET	Field Effect Transistor
FLC	ferroelectric liquid crystal
FTAM	File Transfer Access and management
FTP	File Transfer Protocol

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G
GAN	Global Area Network
GDI	Graphic Device Interface
GIF	Graphics Interchange Format
GPS	Global Positioning System
GREAT	Gang Research Evaluation And Testing
GUI	Graphic User Interface

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H
HDLC	High Level Data Link Control
HFC	Hybrid Fiber/Coax
HGC	Herculus Graphic Card
HONET	Home Optical Network
HPFS	High Programming File System
HRef	Hypertext Reference
HTML	Hypertext Markup Language
HTTP	Hypertext Transfer Protocol

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I
IBM	International Bussiness Matchine
ICMP	Internet Control Message Protocol
ICQ	I seek you
IDC	International Data Corporation
IDE	Integerated Development Enviroment / Integerated Device Electronics
IDN	Intergrated Digital Network
IEC	International Electrotechnical commision
IEEE	Institute of Electrical & Electronics Engineering
IMEI	International Mobile Equipment Identifier
INTERNET	INTERnational NETwork
IPX/ SPX	Internet Packet eXchange / Sequenced Packed eXchange
IRQ	Interrupt request
ISA	Industry Standard Architecture
ISDN	Integerated Service Digital Network
ISO	International Standard Organisation
ISP	Internet Service Provider
ITU	International Telecommunication Union

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J
JEDEC	Joint Electron Device Rngineering Council
JPEG	Joint Photoghraphics Experts Group

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L
L1	Level one cache
L2	Level two cache
LAN	Local Area Network
LAPB	Link Access Procedure-Balanced
LAPD	Link Access Procedure on the D-channel
LAPF	Link Access Procedure for Frame mode bearer service
LASER	Light Amplification by Stimulated Emission of Ray
LCD	Liquid Crystal Display
LED	Light Emmiting Diode
Li-Ion	Lithium-Ion ( a type of battery for mobile)
LLC	Logical Llink Control
LPT	Line printer / Local printer
LSI	Large Scale Integeration

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M
MAC	Medium Access Control/ Media Access Control
MAN	Metropolitian Area Network
MAU	Media Attachment Unit / Media Access Unit
MDA	Monochrome Display Adapter
MEMS	Micro EletroMechanical System
MIDI	Musical Instrument Digital Iinterface
MIME	Multi-purpose Internet Mail Extension
MIRC	Microsoft Internet Relay Chat / May I Request for Chat
MMX	MultiMedia eXtension
MODEM	MOdulator & DEModulator
MOSFET	Metal Oxide Semiconductor Field Effect Transistor
MSAU	Multiple Station Access Unit
MSI	Medium Scale Integeration

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N
NASA	National Aeronautical & Space Administration
NAM	Number Assignment Module
NBS	National Bureau of Standards
NCP	Network Core Protocol
NetBEUI	NETwork Basic input output system Extended User Interface
Nibble	A group of four bits
NIC	Network Interface Card
NiCd	Nickel-Cadmium (a type of battery for mobiles)
NiMH	Nickel Metal Hydride Battery ( for mobiles battery)
NLSP	Network Link Service Protocol
NMI	Non Markable Interrupt
NRZ	Non Return to Zero
NRZI	Non Return to Zero Inverted
NSP	Network Service Protocol
NTFS	New Technology File System
NTSC	National Television System Committee
NVTS	Network Virtual Terminal Service

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O
OCR	Optical Character Reader / Optical Charater Recognition
ODBC	Open DataBase Connectivity
ODI	Open Driver Interface
OEM	Original Equiment Manafacturer
OLE	Object Linking and Embedding
OS	Operating System
OSI	Open System Interconnection
OTDR	Optical Time Domain Relflectometer

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P
PAL	Phase Alteration by Line
PAP	Printer Access Protocol / Password Authentication Protocol
PBX	Private Branch eXchange
PCI	Pheripheral Component Interface
PCL	Printer Command Language
PCM	Pulse Code Modulation
PCMCIA	Personal Computer Memory Card International Association
PCS	Personal Communications Service
PDAs	Personal Digital Assistants
PDC	Primary Domain Controller
PDF	Portable Document Format
PDH	Plea Digital Hierarchy
PDU	Protocol Data Unit
PERL	Practical Extraction and Report Language
PGA	Pin Graded Array (Micro processor type)
PIC	Programable i\Interrupt Controller
PIN	Personal Identification Number
PON	Passive Optical Network
POP	Post Office Protocol
POST	Power On Self Test
POTS	Plain Old Telephone System / Plain Ordinary Telephone System
PPP	Point to Point Protocol
PPTP	Point to Point Tunneling Protocol (used in VPN)
PROM	Programable Read Only Memory
PSPDN	Packed Switched Public Data Network
PSK	Phase Shift Keying
PSTN	Public Switched Telephone Nnetwork
PTCL	Pakistan Telecommunication Limited
PTML	Pakistan Telecommunication Mobile Limited
PVC	Polyvinyl chloride / Permanent Virtual Circuits

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Q
QAM	Quadrature Amplitude Modution
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R
RADAR	Radio direction and ranging / radio detection and ranging
RADSL	Rate Adaptive Digital Subscriber lines
RAID	Redundant Arrays of Inexpenive Disks / Redundant Arrays of Independent Disks
RARP	Reverse Address Rasolution Protocol
RDRAM	Rombous …..DRAM
RFI	Radio Frequency Interface
RIP	Routing Information Protocol / Raster Image Processor
RISC	Reduced Instruction Set Computers
RML	R
RMM	Read Mostly Memories (when non volatile storage of information is required)
RPG	Report Program Generator
RPM	Rotation Per Minute
RTF	Rich Text Format
RTL	Resistor Transistor Logic
RTOS	Real Time Operating System
RTS	Request to send {for commands}

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S
SAML	Security Assertion Markup Language
SAM	Security Account Management
SAP	Service Advertising Protocol / Service Access Point
SCR	Silicon Control Rectifier
SCSI	Small Computer System Interface
SDH	Synchronous Digital Hierarchy
SDLC	Synchronous Data Link Control / System Development Life Cycle
SDSL	Symmetrical Digital Subscriber Lines
SDRAM	Synchronous Dynamic Random Access Mmemory
SDU	Service Data Unit
SECAM	Sequential Chrominance And Memory
SEM	Scanning Election Microscope
SIM	Subscriber Identity Module
SIMD	Single Instruction Many Data
SIMM	Single Inline Memory Model
SIP	Single Inline Package
SLIP	Serial Line Internet Protocol
SMART	Self Monitoring Analysis and Reporting Technology
SMS	System Management Server / Short Message Service
SMTP	Simple Mail Transfer Protocol
SNA	System Network Architecture
SNMP	Simple Network Management Protocol
SONET	Synchronous Optical Network
SPP	Standard Parallel port
SQL	Structural Query Language
SRAM	Static Random Access Memory
SSB	Single Side Band / Suppress Side Band
SSI	Small Scale Integeration
SST	Single Side band Transmission
STN	super twisted nematics
STP	Shielded Twisted Pair

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T
TCP/IP	Transmission Control Protocol / Internet Protocol
TDM	Tone Division Multiplexing
TDMA	Time Division Multiple Access
TFT	Thin Film Transistors (Monitors Type)
TP-PMD	Twisted Pair - Physical Medium Department
TSR	Terminal & Stay Residence Program

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U
UART	Universal Asynchronous Receiver / Transmitter
UDP	User Datagram Protocol
UDP	Universal Designing Protocol
UML	Unified Modeling Language
UNC	Universal Naming Convention
UNI	User Network Interface
UPS	Uninterruptible Power Supply
URI	Universal Resource Identfier
URL	Uniform Resource Locator / Universal Resource Locator
USASI	USA Standard Institute
USB	Universal Serial Bus
UTP	Unsheilded Twisted Pair
UXGA	Ultra eXtended Graphics Array

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V
VBA	Visual Basic for Application
VBR	Variable Bit Rate
VC	Virtual Container
VCC	Virtual Channel Connection
VCL	Visual Component Library
VDSL	Very high bit rate Digital Subscriber Lines
VDT	Visual Display Terminal
VDU	Video Display Unit (Monitor)
VESA	Video Electronics Standards Association
VFAT
VGA	Video Graphic Adapter / Variable Graphics Array
VLSI	Very Large Scale Integration
VML
VPC	Virtual Path Connection
VPN	Virtual Private Network
VRAM	Video Random Access Memory / Vidoe RAM
VTAM	Virtual Telecommunication Access Method

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W
WAN	Wide Area Network
WAP	Wireless Application Protocol / Wireless Access Protocol
WDM	Wavelength Division Multiplexing
WORMCD	Write Once Read Many Compact Disc
WWW	World Wide Web
WYSIWYG	What You See Is What you Get

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