BATRAS PROVIDE BEST COMPUTER

COACHINGS

Made By :- Simran Kaur

FULL FORM OF COMPUTER

• C:- Commonly

• O:-Operated

• M:-Machine

• P:- Particularly

• U:-Usefor

• T:- Technically

• E:-Educational

• R:- Research

INTRODUCTION OF

COMPUTER

• A computer is a device that can receive,

process and store data. They are used as

tools in every part of society together with

the Internet. Computers nowadays are

complex; there are a lot of different

components inside them, and they all serve

different purposes. They all need to work

together for the computer to work; knowing

how a computer works makes it easier to use

a computer by being able to understand how

a computer will respond.

COMPUTER SYSTEM

• A Computer system consists of both

hardware and software including all

input and output devices that enable

the computer to get the desired

output . A computer hardware is a

set of its physical components i.e.

electrical , electronic and mechanical

which a computer is a collection of all

programs and instructions which are

performed on computer .

PARTS OF COMPUTER

• If you use a desktop computer, you

might already know that there isn't

any single part called the "computer."

A computer is really a system of many

parts working together. The physical

parts, which you can see and touch,

are collectively called hardware.

(Software, on the other hand, refers

to the instructions, or programs, that

tell the hardware what to do.)

THE MOTHERBOARD

The motherboard is

the part of the

computer where such

things as the

processor, memory

modules, expansion

cards and external

devices are attached.

This means that the

motherboard controls

the functions of

different components.

Below are some

important features of

the motherboard:

THE PROCESSOR

• The processor can be

considered to be the ‘engine’

of the computer because it

executes the lion’s share of the

information processing; the

processor fetches commands

and necessary information

from the RAM, carries out the

tasks specified by the

commands, and returns the

processed information to the

RAM.

RANDOM ACCESS MEMORY (RAM)

• The RAM (Random Access

Memory) is a memory storage

that functions during computer

use and is especially utilized by

the processor. In modern

computers, the amount of RAM

is around 4 – 16 GB depending

on the type and purpose of the

computer (please see data entry

units for more information). The

RAM consists of one or more

memory modules (see image

above).When the computer is

started, the operating system is

loaded intao the RAM (an

operating system is a program

that controls the devices and

programs in a computer –

please see operating systems

for more information).

HARD DRIVE

• The hard drive is the

permanent memory of the

computer where saved

files remain even when the

computer is turned off.

This is why the hard drive

is used for saving files. The

capacity of hard drives

varies; currently the

typical capacity is 500-

1000 GB, but hard drives

of over 1500 GB, i.e. 1,5

terabit, are also available.

MOUSE

• Used for making

selections. There

are two buttons

on a mouse. Most

actions are

performed usinga

the left mouse

button. Some

mice have cords

and some do not.

KEY BOARD

• Used for

entering data,

generating

commands. The

keyboard layout

is similar to a

typewriter with

additional keys

for other

functions. There

is a number

keypad to the

right of the

main

alphabetical

keypad.

MONITOR

• The monitor is the

visual component of the

computer. It displays

information to the user.

This is a required part

of the computer. This

part requires electricity

so it will have its own

power cord to plug into

an outlet.