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Leibniz machine (Gottfried Wilhelm von Leibniz)
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Charles Babbage Analytical Engine
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George Boole (BOOLEAN Algebra)
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Charles Xavier Mechanical Calculator
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Augusta Ada King (Countess of Lovelace)
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Chester Carlson's Xerox machine
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Integrated Circuit (chip)
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Integrated Circuit
Intergrated Circuits Jack Kilby -
Douglas Engelbart
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MS-DOS Computer OperatingSystem
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Tim Berners-Lee
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Charles Babbage Difference Engine
