I enjoyed visiting the Science and Industry Museum in Manchester this month, where this replica of the 1948 computer "Baby" is on display. The replica is in working order and is regularly demonstrated, although sadly not during our visit.
The original Baby was an experimental proof of design built by Manchester University, and after being successful it was developed into the larger Manchester Mark 1.
The Manchester Mark 1 was in turn commercialised as the Ferranti Mark 1, which was the first commercially available general purpose stored program computer.
