Willgodt Theophil Odhner
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What links here
Arithmometer
Mechanical calculator
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Curta
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Comptometer
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History of computing
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Leonardo Torres Quevedo
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Timeline of computing hardware before 1950
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Information Age
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List of inventors
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Adding machine
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Machine
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Scientific Revolution
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Sputnik 1
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History of computing hardware
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Gottfried Wilhelm Leibniz
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Calculator
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Computer science
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Abacus
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