• on Education & Information
  • Published in issue 5/2010 on page 64
About the article

Colossus - the Rebuild

A giant digital computer that uses valves as its main logic elements

Colossus - the Rebuild
Colossus was a digital computer that contained 2400 valves and ran its programs as fast as a modern computer. It was designed in 1943 and made a significant contribution to ending World War 2. This is the story of that machine and the rebuilt version that you can visit at Bletchley Park (UK). How did Colossus came about, and how were valves made into computing elements?
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