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Vacuum tubes used for circuitry and magnetic drums.
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Antanasoff-Berry-Computer (ABC) was invented by John Atanasoff and Clifford Berry.
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Transistors were used.
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IBM PC (International Business Machines personal computer) was invented by Philip Don Estridge.
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Minicomputer was invented by Seymour Cray.
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Used integrated circuits.
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Game consoles were invented by Ralph H. Baer.
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DEC PDP-8 (Digital Equipment Corporation) was invented by C. Gordon Bell and Edson de Castro.
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Nintendo was invented by Gunpei Yokoi.
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Use microprocessors.
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E-books were invented by Michael S. Hart
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Microcomputer was invented by Ed Roberts.
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Apple computer was invented by Steve Wozniak and Steve Jobs.
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Digital camera was invented by Steven Sasson.
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Laptop was invented by William Moggridge.
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Personal computer was invented by Philip Don Estridge.
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Kodak DCS (Digital Camera System 100) was invented.
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Web cam was invented by the Cambridge University science department.
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Smartphones was invented by IBM.
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Artificial Intelligence