Full Form of Some important Shortcut 
IT= information technology
PC= personal computer
CRT = cathode ray tube
LCD =  light crastal display 
LED = light emitting diode
VDU = visual display unit
CD = compact disk
DVD => digital versatik disk
HDD => hard disk drive
SMPS => sumitch mode power supply 
UPS => unitter poted power supply
KB => kilobyte 
GB=> giga byte
MB=> mega byte
WWW => world wide web 
E-mail => electronic mail
Com= company
Org=> organization 
LAN = local area network
MAN = metro politon area network 
WAN = wide area network 
DTP =desk top publishing 
FTP = File transfer protocol 
HTTP == hypertext transfer protocol
HTML = hypertext mark up language
DHTML= dynamic hypertext markup language
DNS =  domain noming system 
CPU=control processing unit
RAM = random access memory
ROM= read only memory
PROM= programmable read only memory 
EPROM= earabel programmable read only memory
EEPROM= electrically erasable read only memory
DOS= disk operating system
OS= operating system
CU= control unit 
ALU= arithamatic logic unit
MU= memory unit
ASCll = American standard code information interchange 
ENIAC =electronic nomaral enter gratore analyzer and computer.
EDVAC= electronic discreate variable automatic computer
UNIVAC universal automatic computer
GUI= graphical user interface
URL= uniforms research locator 
RDBMS = relationship data base management system . 
DBMS= data base management system 
LSI = large scale intergration 
VLSI = very large scale intergration 
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