Computer

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Computer

Muhammad Younas

Introduction to Computer  Computer

is an electronic device that is used to solve various problems according to a set of instructions given to it.  Computer is an electronic device which accept data process it and display result.  Computer word is derived from compute that means to calculate.

Characteristics of Computer  Speed  Accuracy  Reliability

(consistency)

 Storage  Versatility

(flexibility)  Communication

Hardware  The

physical parts of a computer are known as computer hardware. You can touch, see and feel the hardware.

Computer System

Computer Sys

Hardware

Software

Hardware Input devices Output devices CPU Memory Unit.

Software A

set of instructions given to the computer in machine code that tells the computer what to do and how to perform the given task of the user is known as computer software.

Software

System S/W

Application S/W

System Software  System

Software is a set of programs required to implement certain functions in the computing system.  System Software controls the operation of a computer system.  Operating System

Application Software  Application

Software is a program needed to perform various applications on the computer by user. It help a computer user to solve a specific problem.  MS-Word  Visual Basic

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