Mark Richards - Core Memory Gallery
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Mark Richards07Arnold Nordsieck and Richard Norberg created this Differential Analyzer in 1956 to solve equations in physics.
Mark Richards08The Nordsieck/Norberg Differential Analyzer featured multiple computation units allowing for addition, integration and multiplication mounted on a rolling table. Electrical signals connected the units via servos.
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Mark Richards12Herman Hollerith developed this 1890 tabulation machine for the Census Bureau. Holes punched in a card represented census results, with the card placed in a press that counted the holes. In 1911, Hollerith sold his patents for the machine to the Computing, Tabulating, and Recording Company, which eventually became IBM.
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