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The Stepped Reckener was the first to add, sutract, multiply, divide, and divide square roots.
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It only preformed addition and it never worked.
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Followed programs on punch cards and designed to make decisions.
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First programmer and stated no commputer no matter how powerful they can think today.
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Herman Hollerith created (now) IBM
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Eniac/ABC still needed pulling, plugging & switch flipping to change
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Idea of stored program in CPU to control all functions. Solved problems with instructions on paper tape.
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used stored program concept correctly & first computer language (C-10) with first keyboard.
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ABC (first electronic computer) used binary number system of 1s and 0s still used today.
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Created a BASIC language interpreter (1975)
Founded Microsoft (1977)
Developed MS-DOS for PCs and Windows -
Large & Expensive ($100,000-millions range)
Large corporations, banks, governments & universities -
Stephen Wozak and Steve Jobs built the first apple commputer in a garrage.
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Made Microcomputers (computer small enough to fit on a desktop) possible
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