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.
from Stuff of Genius
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)