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Computer Basics

Introduction
Brief history of computers
Development of computers
Characteristics of computer
Generations of computer
Functions of computer.
Main parts of computer

Types of computers
Computer system





Introduction

Now-a-days computers are using everywhere: home, schools, colleges, companies, defense, navy etc. At school, students use computer to complete assignments and research. At home, people use computer for various purpose like, playing games, watching videos, using emails for sending messages, reading books, doing research, chatting with friends using social networking sites.

They are used for the reservation of tickets for railways and airlines, paying telephone and electricity bills.

What is computer?
The term computer is derived from the word compute which means to calculate. A computer is an electronic device that takes input (data) from the user and performs the series of actions under the control of set of instructions called program, produce output and stores the result for future use.
Computer performs both simple and complex operations with high speed and accuracy.

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