A replica of the Small-Scale Experimental Machine (SSEM) computer, nicknamed Baby at the Manchester Museum of Science and Industry, England, UK


The Manchester Small-Scale Experimental Machine (SSEM), nicknamed Baby, was the world's first stored-program computer. It was built at the Victoria University of Manchester, England, by Frederic C. Williams, Tom Kilburn and Geoff Tootill, and ran its first program on 21 June 1948.[1] The machine was not intended to be a practical computer but was instead designed as a testbed for the Williams tube, an early form of computer memory. Although considered "small and primitive" by the standards of its time, it was the first working machine to contain all the elements essential to a modern electronic computer.[2] As soon as the SSEM had demonstrated the feasibility of its design, a project was initiated at the university to develop it into a more usable computer, the Manchester Mark 1. The Mark 1 in turn quickly became the prototype for the Ferranti Mark 1, the world's first commercially available general-purpose computer


Size: 4074px × 2716px
Location: Manchester, United Kingdom
Photo credit: © John Keates / Alamy / Afripics
License: Licensed
Model Released: No

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