What is Computer?

  Computer is an electronic device which can performed a complex task by a very simple way, first & accurately using the precious instruction given to it by the human user.

 

 

 

 

 

 

 

 

 

Advantage of computer: 

1. Very high speed: Computer can performed a task with in few second where a human being can do it in an entire year.
2. Large storage capacity: We can store large amount of data in the computer memory.
3. Accuracy: Computer can perform each & every job accurately.
4. Versatility: Computer can perform more than one job at a time.
5. Diligence: Unlike human being is free from monotony tiredness & lack of concentration.  Computer  can work for hours together with creating any errors.

Disadvantage of computer:

1. It can not think.
2. It can not take any independent decision.
3. It can not learn by any experience.

A computer system consist of:

 

1. Input Unit,
2. C.P.U (Central processing unit),
3. Output Unit.