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Analog Computers
Time Period : 150–100 BCE
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Mechanical Computers
Time Period : 1500 – 1960
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Electro-Mechanical Computers
Time Period : 1840 – 1940
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Electronic Vacuum Tube Computers
Time Period : 1906 – 1963
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Tranzistor Computers
Time Period : 1947 – 1960
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Quantum Computers
Time Period : 1960 – Present









