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John Napier created the "Napier Bones" which were a set of rods that could carry out computer calculations
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Jacquard developed a weaving loom that used punch cards to replicate designs making a revolutionary step to computer inputs
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The first machine that approximated the idea of a computer
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Lee De Forest invented the "Electronic Tube".
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British Code Breaker, the "Colossus" computer was introduced during WW2 but destroyed in fear of it being used against the British Empire
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created the floppy disk
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dot matrix printer
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created the integrated circuit
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Created RAM Chip
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Marcian E. Hoff created the Microprocessor