COMPUTER GENERATIONS: Evolution Of Computers.
1.First Generation (1940-1956)
The main Technology behind First Generation was Vaccum Tubes.
2.Second Generation (1956-1963)
Main Electronic Device used in this era were Transistors.
Integrated Circuits replaced transistors in this geenration.
4. Fourth Generation (1971-Present)
Main Electronic Component used these days are micro-processors.
5.Fifth Generation (Present-Future)
Robotics (AI) and Expert Systems are included in this era to make decisions in real life situations.