Generations of Computers

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1. We know five generations of computers.

2. The first computers was built in 1943 in Pennsylvania University in the USA.

3. The first computers were very big.

4. They were not very powerful, not very effective ant not very reliable.

5. The first generation employed vacuum tubes.

6. The example were ENIAC, BESM-1, MINSK-32. IBM-650.

7. The second generation was built in the late 1950's.

8. They used transistors in place of vacuum tubes.

9. They were IBM computers, BESM-4, 6, MINSK-32, M-220.

10. Their size was reduced.

11. The third generation computers began in the mid 1960's.

12. Their processors were made of integrated circuits.

13. These computers were IBM computers, ES computers, M-6000, NAIRI-3, SM-3.

14. The third generation introduced Operating System and Data Base Management System.

15. On Line system were widely developed.

16. The fourth generation started in the mill 1970's.

17. Its logic and memory were built on chips.

18. The example are IBM computers, ES computers, NAIRI-4, ELECTRONICA-60, ISKRA-1256.

19. The fifth generation is not yet built

20. They say, the fifth generation will use new technologies, optical fibers, videodisks and artificial intelligence.

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