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APPLICATIONS OF INFORMATION AND
COMMUNICATION TECHNOLOGY
NAME: Khansa zahid
ROLL NO: SP24-BCS-045
ASSIGNMENT# 02
SUBMITTED TO: Mam Amna Bashir
INTRODUCTION TO
COMPUTER
HISTORY OF
COMPUTER
 OLDER COMPUTERS WERE
ANALOGE.
 REPRESENTS DATA AS VARIABLE
ALONGA CONTINUOUSSPECTURM.
 MORE FLEXIBLE BUT NOT
NECESSARILY BUT MORE PRECISE
AND RELIABLE.
COMPUTERS FOR INDIVIDUAL USE
THERE ARE SIX TYPES OF COMPUTERS.
 DESKTOPCOMPUTERS
 WORKSTATIONS
 NOTEBOOKCOMPUTERS
 TABLETCOMPUTERS
 HANDHELDCOMPUTERS
INPUT DEVICES
Hardware devices used to enter
data and instructions.
DATA
 By themselves do not make much sense
 Pieces of informationand individual facts
 Computers organize and represent data
AVOIDING KEYBOARD RELATED INJURIES
ELECTRONIC MAGNETIC FIELD (EMF)
 Generated by all electronic devices .
 EMF may be detrimental to health .
 Steps to avoid
o Keep the computer at arm length
o Take frequent breaks
o Use LCD monitor.
WORKING OF INK JET PRINTERSZ
LETTER TO BINARY CONVERSION
DECIMAL TO HEXADECIMAL

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