What is Computer ? What does a computer do ?

 What is A Computer ?

  Computer is a very versatile electronic machine a man has ever created which process information ,store data and make our work easier. 

   What does a computer do ? 

A computer can perform four general operation ,which  compose the information cycle .

• Input                                     
• Process
• Output
• and Storage

     

Data Information 

• All computer processing requires data ,which is a collection of raw facts ,figures and symbols such as numbers ,words ,image ,video and sound given to the computers during the input phase .
•   During the output phase the information that has been created is put into some form such as printed form 
• The information can also be put in computer storage for future use.

 Type Of Computer ?

1.  Analog Computer
2. Digital Computer 

  What is Analog Computer ? 

Analog computer handle or process information which work  physical nature , temprature, pressure etc. 

 What is Digital computer ?

• Digital computers process information which is essentially in a binary or two state form namely zero and one .
• When talking about the computers we mostly refers to the digital type of computer these type of computer are based on the measuring of analog or equivalent physical value.