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Period: to
First Generation
1)Based on vacuum tubes.
2) The operating systems owere very slow.
3) They were very large in size.
4) Production of the heat was in large amount.
5) Machine language was used for programming.
6) Were unreliable.
7) They were difficult to program and use. -
Period: to
Second Generation
1) Transistors were used in vacuum tubes.
2) Were smaller in comparison with the first generation.
3) Were faster in comparison with the first generation.
4) Generated less heat and were less prone to failure.
5) Took comparatively less computational time.
6) Assembly language was used for programming.
7) Has faster input/output devices. -
Period: to
Third Generation
1) IC was used instead of transistors.
2) Were smaller in size and cheaper than the second.
3) They were fast and more reliable.
4) High level language was developed.
5) Magnetic core and solid states as main storage.
6) They were able to reduce computational time and had low maintenance cost.
7) Input/Output devices became more sophisticated. -
Period: to
Fourth Generation
1) Have microprocessor-based systems.
2) The cheapest among all the computer generation.
3) The speed, accuracy and reliability of the computers were improved in it.
4) Many high-level languages were developed.
5) A Further refinement of input/output devices was developed.
6) Networking between the systems was developed. -
Period: to
Fifth Generation
1) ULSI technology. 2) Development of true artificial intelligence. 3) Development of Natural language processing. 4) Advancement in Parallel Processing. 5) Advancement in Superconductor technology. 6) More user friendly interfaces with multimedia features. 7) Availability of very powerful and compact computers at cheaper rates. -
Period: to
Sixth Generation
Differs from previous generations in terms of size, processing speed and the complexity of tasks that computers can now perform.