19 ч 7 авг 1944 г. - Harvard Mark I and the IBM automatic Sequence Controlled Calculator (ASCC)

Описание:

Howard Aiken in collaboration with IBM, developed his first fully functional computer, known as the Harvard Mark I. The machine was huge: more than 50 feet (15 metres) long, weighing five tons, and consisting of about 750,000 separate parts, it was mostly mechanical. For input and output it used three paper-tape readers, two card readers, a card punch, and two typewriters. It took between three and six seconds to add two numbers.

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