Introduction

May 5th, 2021

Introduction and Basics

Definition : Computer is an electronic device which accepts the data, processes it and gives us output.

Input devices are used to input data in system.

Following are some common known input devices

Keyboard

Mouse

Scanner

Joystick

Magnetic Ink Character Reader in banks [MICR]

OMR Optical Mark Reader (Competitive exams OMR sheets)

Bar Code Reader

Web Camera

Microphone

Sensors

Output devices are used to give output to user.

Following are some common known output devices

Printer

Monitor (Screen, VDU Visual Display Unit)

Plotter

Speaker

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