Model K

The Model K was an early relay binary adder[1] built in 1937 by George Robert Stibitz, a scientist at Bell Laboratories.[2][3][4]

This article is about an early digital calculator. For the automobile, see Ford Model K.

References
  1. "Stibitz Model K Adder | 102627225 | Computer History Museum". www.computerhistory.org. Retrieved 2018-08-31.
  2. "George Robert Stibitz's Complex Number Calculator". Archived from the original on 2008-07-04. Retrieved 2017-09-29.
  3. ""Model K" Adder (replica) - CHM Revolution". www.computerhistory.org. Retrieved 2018-08-31.
  4. Irvine, M. M. (July 2001). pdf. "Early digital computers at Bell Telephone Laboratories". IEEE Annals of the History of Computing. 23 (3): 22–42. doi:10.1109/85.948904. ISSN 1058-6180.


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