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Built the first auomatic calculator
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created the hollerith tabulating machine
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-mechanical caculator
-included control unit and seprate memory functions -
used vaccum tubes to store data
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never sold commercially
came with network and a mouse -
used transistors to store data
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used integrated circuits
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used microprocessor chip
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the first person computer
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Wrote interpeter program and sold altair
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built buy steve jobs and steve woziniak
operatig sytem stored in ROM -
included disk drives in personal comuers set off an explosion of software applications
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Word processing
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Built overnight successfully
5 inch screen -
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caused 350% increase in internet traffic
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in 1998 netscape became an open source