“Computer generation”

“Computer generation”

The development of computer can be classified into five generation that is called computer generation. It is also known as step in technology. There is five generation of Computer. They are-

1.     First generation of computer.

2.     Second generation of computer.

3.     Third generation of computer.

4.     Fourth generation of computer.

5.     Fifth generation of computer.

All the generation has their duration memory components used are listed below:

Generation	Duration	Memory Component
First generation	1942-1955	Vacuum tubes or Valves
Second generation	1955-1964	Transistors
Third generation	1964-1975-	Integrated circuits(IC)
Fourth generation	1975-1990	VLSI or Bio micro processor
Fifth generation	1990- onward	VLSI or Bio chips

When generation goes up (from first to second, second to Third etc) the characteristics are in effect. 

Characteristics	Effect
1.     Speed 2.     Power consumed 3.     Size 4.     Heat generate 5.     Accuracy 6.     Storage Capacity 7.     Complexity 8.     Cost 9.     Processing Capacity 10.                        User Friendly software	-         Increased -         Decreased -         Decreased -         Increased -         Increased -         Increased -         Decreased -         Decreased -         Increased -         Increased