Overview Edit

Colossus, created in 1943, was a very early electronic computing system. Its core was built with vacuum tubes, and although it had fairly limited utility, it ushered in the use of electronic vacuum tubes for a generation of computer systems that followed.

Source Edit

External resource Edit

  • "Colossus: The Secrets of Bletchley Park's Codebreaking" (B. Jack Copeland ed. 2006).

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