Colossus veterans and their families gather today at The National Museum of Computing located on Bletchley Park to celebrate the 70th anniversary of Colossus, the world’s first electronic computer. They will see a re-enactment of the code-breaking process from intercept to decrypt with a working rebuild of Colossus.
On 5 February 1944 Colossus Mk I attacked its first Lorenz-encrypted message, the highly sophisticated cipher used in communications between Hitler and his generals during World War II.
Designed by brilliant British telephone engineer Tommy Flowers, Colossus was built to speed up code-breaking of the complex Lorenz cipher. By the end of the war there were ten functioning Colossi and they had a decisive impact in shortening the war and saving countless lives.
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