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National Museum of Computing

The National Museum of Computing is dedicated to collecting and restoring historic computer systems. Opened in 2007, the museum is based at Bletchley Park in Milton Keynes, Buckinghamshire. The museum is the home of the World-famous rebuild of the first electronic computer, Colossus, which was used to decipher the Lorenz-encrypted (Tunny) messages between Hitler and his generals during World War II. It also houses the world's oldest original working digital computer from 1951, the Harwell Dekatron aka WITCH computer. The PC Gallery in the museum is home to computers from the 1970s and you can roll back the years and play retro games on many working computers.