The Colossus computer worked using one to two thousand thermionic valves.
The Expert answer is wrong, Enigma messages were cracked using electromechanical Bombe machines.The computer Colossus cracked the German "Fish" codesthat the German High Command used.
It depends on what you mean by computer, but the first electronic, partly programmable computer was the colossus computer built by Tommy Flowers in 1943.
Tommy Flowers developed Colossus in 1943. This computer was intended to aid British code breakers in World War II with analysis of the Lorenz cipher.
Probably rate of burnout and heat. But this was common to all vacuum tube computers, not just Colossus.
the main objective of the colossus was to break the enigma code
Colossus was a very large computer that used valves - a far cry from a modern desktop computer. It was used to help break the German's Enigma Code.
The Colossus computer worked using one to two thousand thermionic valves.
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mr. computer
Colossus was programmed by instructions punched on a roll of paper tape.
Colossus
Colossus computer was created on 1944-06-06.
andrew gregory
Colossus was a code breaking computer designed by Tommy Flowers.
The colossus computer weighed over 100 pounds
there were two colossus and the bomb