Uncovering Colossus in the 1970s

On 7 February 2013, Prof Brian Randell, seated in the heart of the Colossus Gallery at TNMOC, told the story of how he uncovered the existence of Colossus in the 1970s and how the 30-year veil of secrecy surrounding the world’s first electronic computer was lifted.

At the conclusion of his talk, Margaret Sale, a TNMOC trustee and wife of the late Tony Sale who led the team that rebuilt Colossus, said: “Professor Randell inspired Tony to rebuild Colossus and now it stands in TNMOC on Bletchley Park as a wonderful celebration of Britain’s codebreaking and engineering ingenuity during World War II. I thank Professor Randell from the bottom of my heart for starting that off and finding out so much for us.”

The rebuild of Colossus can be seen every day at The National Museum of Computing, located on Bletchley Park. See www.tnmoc.org for details.