How many electric switches were used in MARK-1
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The Mark I had 60 sets of 24 switches for manual data entry and could store 72 numbers, each 23 decimal digits long. It could do 3 additions or subtractions in a second. A multiplication took 6 seconds, a division took 15.3 seconds, and a logarithm or a trigonometric function took over one minute.
Successor: Harvard Mark II
Also known as: IBM Automatic Sequence Controlled Calculator (ASCC)
Dimensions: 816 cubic feet (23 m3) – 51 feet (16 m) in length, 8 feet (2.4 m) in height, ...
Power: 5 horsepower (3.7 kW)
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