What is computer

A computer is a programmable machine that receives input,

stores and manipulates data, and provides output in a useful

format, they can be constructed out of almost anything.

Mechanical examples of computers have existed through

much of recorded human history. The first electronic

computers were developed in the mid-20th century (1940–

1945). Originally, they were the size of a large room,

consuming as much power as several hundred modern

personal computers .

Computer Hardware

A personal computer is made up of multiple physical components of computer hardware, upon which can be installed a system software called operating system and a multitude of software applications to perform the operator's

desired functions.Though a PC comes in many different forms, a typical personal computer consists of a case or chassis in a tower shape (desktop), containing components such as a motherboard.

Types Of Computer Hardware

1.Motherboard

2.Central

processing

Unit3.CD-ROM drive

4.Floppy disk

Motherboard

A mother

board is

the cen

tral pri

nted cir

cuit boa

rd

 (PCB) i

n many m

odern co

mputers 

and hold

s many o

f the

crucial

componen

ts of th

e system

, while

providin

g

connecto

rs for o

ther per

ipherals

. The mo

therboar

d is

sometime

s altern

atively

known as

the mai

n

board, s

ystem bo

ard, or,

on Appl

e comput

ers, the

 

logic bo

ard.[1] It

is also

sometime

s casual

ly short

ened

to mobo.

Central Processing UnitThe central processing unit (CPU) is the portion of a 

computer system that carries out the instructions of a 

computer program, and is the primary element carrying out

the computer's functions. The central processing unit carries

out each instruction of the program in sequence, to perform

the basic arithmetical, logical, and input/output operations

of the system. This term has been in use in the computer

industry at least since the early 1960s.[1] The form, design

and implementation of CPUs have changed dramatically

since the earliest examples, but their fundamental operation

remains much the same.

CD-Rom Drive

CD-ROMs are popularly used to distribute computer software, including games and multimedia applications, though any data can be stored (up to the capacity limit of a disc). Some CDs hold both computer data and audio with the latter capable of being played on a CD player, while data (such as software or digital video) is only usable on a computer (such as ISO 9660 format PC CD-ROMs). These are called enhanced CDs.

Floppy Disk

Floppy disks are read and written by a floppy disk

drive or FDD,[1] Invented by the American 

information technology company IBM, floppy disks in

8 inch, 5¼ inch and 3½ inch forms enjoyed nearly three

decades as a popular and ubiquitous form of data storage

and exchange, from the mid-1970s to the late1990s. While

floppy disk drives still have some limited uses, especially

with legacy industrial computer equipment, they have now

been superseded by USB flash drives, 

external hard disk drives, optical discs, memory cards and 

computer networks.