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Basic knowledge of Computer.

What is Computer?

Computer is an  electronic device that can solved different problems,process data ,store and retrieve data and perform calculations faster and efficiently than human .It consist of two parts one hardware another is software.


Basic knowledge of Computer.

There are three types of computer:

1. Analog computer

2. Hybrid computer

3. Digital computer

Types Of Digital Computer:

Super 

Mainframe

Mini

Micro

There are three types of micro computer:

Super Micro

Desktop

Laptop

Two types of Laptop:

Notebook

PDA

Parts of computer:

Motherbord

CPU-Central processing unit

GPU-Graphics processing unit

HDD-Hard disk drive

SSD-Sold state drive 

Function of computer:

1. Data Input 

2. Data Output 

3. Data processing

4. Data Storage


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Diagram of computer


Basic knowledge of Computer.


HARDWARE

Computer hardware is the collection of physical parts of comuter system.It also includes the computer case,monitor,keyboard  and mouse.It also  includes all the part inside the computer case,such as the hard disk drive,motherboard,vedio card and many others.Comouter hardware is what you can physically touch.    


INPUT DEVICES

Keyboard

Mouse

Web camera

Digital camera

Drawing tablet

Microphone

Scanner

Touch screen

BAR Coad scanner

QR coad scanner

OUTPUT DEVICE

Monitor

Printer

Speaker

Headphone

Plotter

Projector

STROAGE DEVICES

RAM-Random access memory

ROM-Read only memory

HDD-Hard disk drive

DVD-Digital versatile disc

USB flash memory

Cache memory


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SOFTWARE

Software is a set of instructions that determaine or control the action of a computer.Software resides inside the hard disk drive.Without software we can not use a computer.Software’s act an interpreter between the computer hardware and the application Software/User.

There are two types of software:

1.systemsoftware

2.applicationsoftware

System software:

1.Operating system.(ex-Windos,Linux,Dos)

2.Device driver.(ex-USB driver,Audio driver)

3.language processor.(ex-Java script,Html,Paython,C++)

4.Utilites software.(ex-Antivairus,Recovery software)

Application software:

1.General purpose/Packaged software.(ex-msworld,onenote,excel)

2.Customized software.(ex-student data,bnsis)

                                                                                          

COMPONENT OF SYSTEM UNIT:

Motherbord

CPU or Processing fan

Powere supply

Power cable

Data cable

Case

Case fan

Expansion card:-vedio card,sound card,NIC

DVD  drive

Hard disk drive 

Floppy disk drive

RAM

COMPONENT OF MOTHERBORD

Processor Slot 

RAM slot

Expansion slot

Communication port

Parraral port

USB port

Keyboard/Mouse connector

Power connector

Floppy disk drive 

BIOS chip

CMOS battery


COMPUTER VAIRUS

A computer is a malicious coad that Replicates by copying itself to another program,computer boot sector or documents and change how computer works.

Computer virus

Name of some antivirus:

Kaspersky Anti-virus

Norton Anti-virus

F-Secure Anti-virus

BullGuard Anti-virus

McAfee Anti-virus

Avira Anti-virus

Bitdefender Anti-virus

Norman Anti-virus

VIPRE Anti-virus


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ABBREVATION


DVD-Digital versatile disk

BIOS-Basic Input output system

VIRUS-Vital information resources under seize

ALU-Arithmetic and logic unit 

HDMI-High definition multimedia interface

USB-Univarsal serial bus

SIMOS-Supporting interactive multimedia online service

                            

CPU-Central processing unit

IC-Integrated circuit

LAN-local area network

OS-Operating system

HDD-Hard disk drive

FDD-Floppy disk drive


See Demo This File :

Basic knowledge of Computer.

Basic knowledge of Computer.

Basic knowledge of Computer.


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