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  is known for the concept of a programmable computer
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  The worlds first computer programmer
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  Found and invented the first electronic digital computer
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  George Robert Stibitz is internationally recognized as one of the fathers of the modern first digital computer
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  Created the scoring system that is used to score state tests used today
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  Z1, Z2, Z3, Z4, computers
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  Led development of the original IMB PC
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  He developed the mathmatical theory of packet networks, the technology underpinning the Internet, while a graduate student at MIT in the period from 1960-1962
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  Inroduced the first portable computer. He specialized in easy-to-follow computer manuals. Founded Paperback Software International, which specialized in inexpencive computer software
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  Computer related contributions