Williams and Kilburn reported on the Baby in a letter to the Journal Nature, published in September 1948.[41] The machine's successful demonstration quickly led to the construction of a more practical computer, the Manchester Mark 1, work on which began in August 1948. The first version was operational by April 1949,[40] and it in turn led directly to the development of the Ferranti Mark 1, the world's first commercially available general-purpose computer
In 1998, a working replica of the Baby, now on display at the Museum of Science and Industry in Manchester, was built to celebrate the 50th anniversary of the running of its first program. Demonstrations of the machine in operation are held regularly at the museum.[42] In 2008, an original panoramic photograph of the entire machine was discovered at the University of Manchester. The photograph, taken on 15 December 1948 by a research student, Alec Robinson, had been reproduced in The Illustrated London News in June 1949.