Colossus computer
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Colossus was a set of computers developed by British codebreakers in the years 1943–1945 to help in the cryptanalysis of the Lorenz cipher. Colossus used thermionic valves to perform Boolean and counting operations. Wikipedia
Manufacturer: Post Office Research Station
Release date: Mk 1: December 1943; Mk 2: 1 June 1944
Developer: Tommy Flowers, assisted by Sidney Broadhurst, William Chandler and for the Mark 2 machines, Allen Coombs
Display: Indicator lamp panel
Generation: First-generation computer
Input: Paper tape of up to 20,000 × 5-bit characters in a continuous loop
Memory: None (no RAM)