Computer

Computer is a fast accurate electronic alphanumeric data

     processing  machine 

Advantages

1. Speed
2. Accuracy
3. Flexibility
4. Stability
5. Expandability 

 
  Disadvantages of Computer

1.  It will reflects human errors.
2. Various virus affection chance is very high.
3. Lack of intelligence.
4. It request any source power  such as current.

    
Generation of Computers

1. First Generation        :    Vacuum tubes ( 1940-1956)
2. Second Generation     :   Transistor
3. Third Generation      :    Integrated Circuit (IC)
4. Fourth Generation    :      Very Large Scale Integration (VLSI)
5. Fifth Generation       :      Artificial Inteligance