ANITA, The 15-Kilogram Calculator

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Designed by the Bell Punch Co. in Britain, ANITA operated via vacuum tubes and cold-cathode tubes. It represented a breakthrough in calculating technology because it was both fast and silent.

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Key Facts In This Video

  1. William Seward Burroughs was the grandfather of famous writer William S. Burroughs. 00:14

  2. William Seward Burroughs invented the mechanical calculator in 1888. 00:47

  3. The first mechanical calculator was finicky, and showed different answers to the same equation depending on how its lever was pulled. 01:11

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