IN THIS BLOG, WE WILL LEARNT ABOUT INTRODUCTION OF COMPUTER HARDWARE&SOFTWARE AND ALSO LEARN ITS COMPONENT.

DEFINITION  OF COMPUTER: 
                     The computer is an electronics device,operating control of instruction  stored in its own memory , that can accept data,process data according to specified rule,produce result and store the data for future use.
     
THE COMPONENTS OF COMPUTER:
     The computer contain many electronic and mechanical component known as  hardware. In components include input & output device communication device,mass storage device and unit system device etc..
     common computer parts are following:

•Hardware

• –Mechanical devices in the computer

• –Anything that can be touched

•Software

–Tell the computer what to do–Also called a program–Thousands of programs exist

•Data

       –Pieces of information–Computer organize and present data

•Users

       –People operating the computer–Most important part–Tell the computer what to do

•Steps followed to process data

•Input

•Processing

•Output 

•Storage  

•Hardware categorized into four types:

•Processing devices

•Memory devices

Random Access Memory (RAM)

Read Only Memory (ROM)

•Input and output devices 

–Input devices accept data

•Keyboard, mouse

–Output devices deliver data

•Monitor, printer, speaker

–Some devices are input and output

•Touch screens

•Storage devices

–Hold data and programs permanently

–Different from RAM

–Magnetic storage

•Floppy and hard drive

•Uses a magnet to access data

–Optical storage

•CD and DVD drives

•Uses a laser to access data

•Two types

–System software

–Application software

•System software

–Most important software 

–Operating system

•Windows XP

–Network operating system (OS)

•Windows Server 2003

–Utility

•Symantec AntiVirus

END OF CHAPTER

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Parts of the Computer System

     PartsParts of the Computer Systemvof the Computer System