The computer has evolved from a large-sized simple calculating machine to a much smaller machine capable of multiple functionalities. Each generation of computer is designed based on the hardware technology used leading to better, cheaper and powerful computers that are faster and efficient than their predecessors.
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Generation of Computers based on Hardware |
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Generation |
Description |
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1st Generation (1940 – 1956) |
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2nd Generation (1956 – 1963) |
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3rd Generation (1964 – 1971) |
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4th Generation (1972 – 2010) |
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5th Generation (2010 – to date) |
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Hence, it can be concluded from the table that vacuum tubes were used by the first generation computers.




