Model K (calculator)

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

The Model K was an early 2-bit binary adder built in 1937 by Bell Labs scientist George Stibitz as a proof of concept, using scrap relays and metal strips from a tin can. The "K" in "Model K" came from "kitchen table", upon which he assembled it.^[1][2][3][4]