Hardware Components of Computer Part I

Desk Top computer

A personal or micro-mini computer sufficient to fit on a desk.

Laptop

A portable computer complete with an integrated screen and keyboard. Also having rechargeable battery ( which can work for few hours with-out power)

TABLET PC

TOUCH SCREEN

ROTATION SENSER

CAN ACCESS INTERNET THROUGH SIM CARD

Eg:- I-PAD (APPLE); GALAXY TAB (SAMSUNG); Aakash (DATAWIND)

Main Frame Computer / Server

A very large and expensive computer capable of supporting hundreds, or even thousands, of users simultaneously

There are four types of Hardware devices

presents in a COMPUTER

1.Input Device

2.Output Device

3.Processing Device

4.Storage Device

Input Device are that device by

which we can make input data &

instruction to the computer for

storing and processing the data as

per instruction.

1.Normal Key BoardKeyboard

2.Multimedia KeyboardKeyboard

1. The main part of a computer keyboard has

alpha-numeric (letter and number) keys

similar to a typewriter.

2. The Function keys, along the top of the

keyboard, are labeled F1, F2, up to F12.

These shortcut keys allow you to quickly

complete a specific task within certain

programs.

3. The Number pad, at the far right end of the

keyboard, resembles a calculator keypad.

MAIN PART OF A COMPUTER KEYBOARD

The mouse is a hardware that is known as a pointing device . It lets you point to objects on the screen, click on them, and movethem.

Mouse

1.Roller Ball Mouse Or Mechanical Mouse

INPUT DEVICE

Mouse

2.Optical Mouse

INPUT DEVICE

Mouse

Document Scanner

CONVERTS HARD COPY TO SOFT COPY

A scanner allows you to copy an image or document and save it in electronic form onto your computer.

Bar Code Scanner

• Used in shopping center & warehouse to keep track of stock.

• In card attendance system

Magnetic Strip Reader (MSR)

• Used in shopping center for credit card or debit card payment.

• In card attendance system

Joystick

• For playing games• For scrolling specially in case of mobiles

Output Device are that device

by which we can get output

information or processed data

from the computer as per our

needs.

1.Cathode Ray Tube (CRT)

MONITER

2.Thin Film Transistor (TFT)MONITER

3.Liquid Crystal Display (LCD)

MONITER

4.Light Emitting Diode (LED)

MONITER

Sound system (7.1 & 5.1)

Speaker; head phone; ear phone

PRINTER

A printer is a peripheral that is used to print, or produce, a version of what appears on the screen in a hardcopyformat.

1.Desk Jet printer/ Dot Matrix

ribbon as cartridge

PRINTER

2.Laser Printer

powder as cartridge

PRINTER

3.Ink Jet Printer

liquid as cartridge

PRINTER

Projector

• Use in cinema hall; seminar ; meeting