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- mechanical calculator invented by Thomas de Colmar
- 4 basic math functions
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invented by Herman Hollerith
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invented by Philo Taylor Farnsworth
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invented by Ampex
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invented by Douglas Engelbart
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invented by Andries van Dam and Ted Nelson
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invented by Ralph H. Baer
released in 1972 as Magnavox Odyssey -
invented by David Noble with IBM
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invented by Sharp Corporation
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invented by Ray Tomlinson
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invented by Xerox PARC
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invented by Bob Metcalfe and David Boggs
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invented by Tim Berners-Lee
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Steve Jobs and Apple introduce
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with full touch screen capacieties
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invented by Apple
