ANITA, The 15-Kilogram Calculator
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
William Seward Burroughs was the grandfather of famous writer William S. Burroughs. (0:14)
William Seward Burroughs invented the mechanical calculator in 1888. (0:47)
The first mechanical calculator was finicky, and showed different answers to the same equation depending on how its lever was pulled. (1:11)