Harvard Mark III
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High Quality Content by WIKIPEDIA articles! The Harvard Mark III, also known as ADEC (for Aiken Dahlgren Electronic Calculator) was an early computer that was partially electronic and partially electromechanical. It was built at Harvard University under the supervision of Howard Aiken for the US Navy. The Mark III's word consisted of thirty-six bits, storing sixteen decimal digits, plus a sign. It used 5,000 vacuum tubes and 1,500 crystal diodes. It used magnetic drum memory of 4,350 words. Its addition time was 4,400 microseconds and the multiplication time was 13,200 microseconds (times…mehr

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High Quality Content by WIKIPEDIA articles! The Harvard Mark III, also known as ADEC (for Aiken Dahlgren Electronic Calculator) was an early computer that was partially electronic and partially electromechanical. It was built at Harvard University under the supervision of Howard Aiken for the US Navy. The Mark III's word consisted of thirty-six bits, storing sixteen decimal digits, plus a sign. It used 5,000 vacuum tubes and 1,500 crystal diodes. It used magnetic drum memory of 4,350 words. Its addition time was 4,400 microseconds and the multiplication time was 13,200 microseconds (times include memory access time). Aiken boasted that the Mark III was the fastest electronic computer in the world.