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In 1822 Charles Babbage invented the difference engine. Charles Babbage proposed the use of such a machine in a paper to the Royal Astronomical Society.
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William Henry "Bill" Gates III (he build the computer in 1955) is an American business magnate, philanthropist, investor, computer programmer, and inventor. Gates originally established his reputation as the co-founder of Microsoft, the world's largest PC software company, with Paul Allen.
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Minsky was a professor at MIT and oversaw the AI Lab, a hotspot of hacker activity, where he let prominent programmers like Richard Stallman run free.
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Cray was a supercomputer architect whose computers were the fastest in the world for many decades. He set the standard for modern supercomputing.
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Apple was founded by Steve Jobs, Steve Wozniak, and Ronald Wayne on April 1, 1976, to develop and sell personal computers.