Researched
Colossus Codebreaking Computer
Tommy Flowers' Colossus (1943-44) uses about 1,500 vacuum tubes to break the German Lorenz teleprinter cipher at Bletchley Park.
Open in the interactive tree →Colossus was the first large programmable electronic digital machine, built in secret and used to read high-level German messages. Its existence stayed classified for decades after the war.
Prerequisites
Sources
More in Electronics & Computing · Machine Age
- Vacuum Tube (Triode)1906
- Radar1935
- Turing Machine1936
- Cavity Magnetron1940
- Programmable Computer1941