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The calculating clock is invented. It is the first mechanical calculator.
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Binary mathematics are discovered and researched. This layed the foundation for all future digital computing.
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Phillip-Malthus Hahn sells a small number of his calculating device.
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punch cards are first used to reproduce complex patterns on an automatic loom.
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first mass produced calculator, was sold in large numbers and used for many years.
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They were used in an electro-mechanical calculator.
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Dr Herman Hollerith builds the first punch card electro-mechanical data processing machine.
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The z-1 was completed.
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Pascal, the first programming language, is invented.
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The first lunar calculator. It was made in Greece, and is important because it is the first mechanical calculator