You Must Know this .....
IP - Internet Protocol.
ISP - Internet Service Provider.
TCP - Transmission Control Protocol.
UPS - Uninterruptible Power Supply.
HSDPA - High Speed Downlink PacketAccess.
EDGE - Enhanced Data Rate for GSM[GlobalSystem for Mobile Communication] Evolution.
VHF - Very High Frequency.
UHF - Ultra High Frequency.
GPRS - General PacketRadio Service.
WAP - Wireless ApplicationProtocol.
TCP - Transmission ControlProtocol .
ARPANET - Advanced ResearchProject Agency Network.
IBM - International Business Machines.
HP - Hewlett Packard.
AM/FM - Amplitude/ Frequency Modulation.
WLAN - Wireless Local Area Network
VIRUS - Vital Information Resource UnderSeized.
3G -3rd Generation.
GSM - Global System for Mobile Communication.
CDMA - Code Divison Multiple Access.
UMTS - Universal MobileTelecommunication System.
SIM - Subscriber Identity Module .
AVI = Audio Video Interleave
RTS = Real Time Streaming
SIS = Symbian OS Installer File
AMR = Adaptive Multi-Rate Codec
JAD = Java Application Descriptor
JAR = Java Archive
JAD = Java Application Descriptor
3GPP = 3rd Generation Partnership Project
3GP = 3rd Generation Project
MP3 = MPEG player lll
MP4 = MPEG-4 video file
AAC = Advanced Audio Coding
GIF= Graphic Interchangeable Format
JPEG = Joint Photographic Expert Group
BMP = Bitmap
SWF = Shock Wave Flash
WMV = Windows Media Video
WMA = Windows Media Audio
WAV = Waveform Audio
PNG = Portable Network Graphics
DOC = Document (MicrosoftCorporation)
PDF = Portable Document Format
M3G = Mobile 3D Graphics
M4A = MPEG-4 Audio File
NTH = Nokia Theme (series 40)
THM = Themes (Sony Ericsson)
MMF = Synthetic Music Mobile Application File
NRT = Nokia Ringtone
XMF = Extensible Music File
WBMP = Wireless Bitmap Image
DVX = DivX Video
HTML = Hyper Text Markup Language
WML = Wireless Markup Language
CD -Compact Disk.
DVD - Digital Versatile Disk.
CRT - Cathode Ray Tube.
DAT - Digital Audio Tape.
DOS - Disk Operating System.
GUI -Graphical User Interface.
HTTP - Hyper Text Transfer Protocol.