Computer software

 Computer Software.

1.  System Software.

• Operating systems.

Main software of computer.We cant start and work with computer without operating system.From this software manage all hardware and software that installed in computer.

example: windows XP

              windows Vista

              windows Seven

• Utility programme.

Utility progarmme use to do some specific process in computer.

example:disk scanner utility

             disk defragment utility

             backup utility

             anti virus programme

     2. Application software.

For some special work we using application software.They are created from using special computer languages.This application software are various by users.

example: microsoft office software

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     3.Communication software.

Communication is very develop in the future.So we can use this communication software to our communication works.

example: Internet explorer

              Outlook express

Main parts of the computer.

                                               Main parts of the computer.      

   

                                                              

System Unit.

This is the main part of computer.In this unit include mother board,processor,ram card,vga card,other expansion cards,cooling fans,power supply unit,hard disks,CD/DVD ROMs,floppy disk drives and other instruments also.All processing works doing from that and this unit named as Central Processing Unit(CPU).

Monitor.

This is a display of computer.Monitor gives processing results to out as pictures,numbers,letters,symbols,multi media information and any other nature of information and monitor is the basic output device of computer.This monitors comes as LCD , CRT and LED types monitors.

Key Board.

This is the main device in inputting.We can input data from key board by typing letters,numbers,symbols and etc.Key boards comes in various shapes and as USB key boards and P/S key boards.

Mouse.

Other main input device of computer is mouse.WE can input data from it by clicking and scrolling.Mouses are come as various shapes,laser and wheel mouses and USB mouses and P/S mouses.

Speakers.

For out put of  sounds and music,we can use speakers as we like.In the future we can see so many types of speakers.

Microphone.

To input any sound type data to computer,we use microphones for it.We can use microphones for talk with other peoples who distance from us by using internet.

Include of system unit.

• Motherboard.     

                                                      

 

• CPU.(processor)

 

• Power supply. 

• RAM.

• Expansion slots.

• Input and Output plugs.

• Hard disk drives.

 

• Floppy disk drives.

• CD/DVD ROM drives.

• Video card.

• Internal modem.

• Battery.

• Other expansion cards.

Data process,Input & Output.

                   Data processing,Input & Output.

• Data processing.                                                                                                                           Data processing is process pf turn data to it's most meaningful and useful situation or turn as information.    

                                                                                                                            

input /output and process steps of computer.

• Input.                                                                                                                                                   Enter instructions and unprocessed data to computer is called as input. Input devices use for this process.

• Output                                                                                                                                                    Provide information to out that created from specific method,we called it as output. Output devices use for this process.             

What we can do from computer....?                                                                                         

• Get data from outside (Input).
• Provide data to outside (Output).
• Saving information on Magnetic disks,Tapes and CD/DVDs.
• Retrieving information from permanent store.
• Send and receive information from data communication channel.
• Data processing in various types.

Characteristics of computer.                                                                                                                    

• Speed.
• Accuracy.
• High Capacity.
• Reliability.
• Automation.
• Multi Tasking.
• Tirelessness.
• Multimedia.
• No intelligence.

                                                                                    
    

Introduction to Computer

INTRODUCTION TO COMPUTER TECHNOLOGY

In the past, human used very simple and undeveloped methods like stone instruments,wood tools and clay instruments to success their daily needs.

But,human needs and wants are came to very complex and various types in day by day.Because of that,human tried to simplify their works by machines and other tools and they created useful machines and instruments to comfort their lives very well.

So, they developed this machines and tools day by day and they could create the machines of automatic and electronic.With this technology human could success their needs and wants very well more than past times.

Human developed this technology in day by day and in the future,they they could create the machines that very efficient and giving rest and relax to human's minds and bodies with simplify their day by day needs.

It is a computer and this machine turned as important part of modern lives.

  What is computer..? 

• Computer is a automatic and electronic data processing machine and from this,turn raw data(unprocessed data)to information that very useful to human needs from inputting.Computer do processing raw data and provide them as output to external persons.

• Computer is a system of automatic electronic data processing machine that made by sub systems of Hardware/ Software and Liveware.

  
 What is data..?

Data is the thing that born due to various transactions in daily life.This is the basic input of computer system and data looking like numbers,characters,letters and other types.

What is information..?

Information is a basic thing that turned as very useful and meaningful to human.From 100% correct data, we can get out correct information and if data is wrong,information also be wrong.