1943/1944
– Colossus Mark I & II.
The
Colossus Mark I & II are widely acknowledged as the first programmable
electric computers, and were used at Bletchley Park to decode German codes
encrypted by the Lorenz SZ40/42.
1946–John Eckert & John W. Mauchly ENIAC 1 Computer.
ENIAC
was short for Electronic Numerical Integrator And Computer.
It was the first general
purpose (programmable to solve any problem) electric
computer. It contained over 17,000
vacuum tubes, weighed 27 tones and drew 150
kW of power to operate.
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