It was built in Harvard University by Howard H. Aiken during 1937 AD.

This device contained 50000 parts and was strung with about 500miles of wires.

Its primary function is to carry out addition, subtraction, multiplication, division and reference to previous results.

Its features are as follows:

It was 51 feet long, 8 feet tall and 2 feet wide which weighed 4500 Kg.

It could do three additions or subtractions in a second.

A multiplication took six seconds, a division took 15.3 seconds, and a logarithm or a trigonometric function took over one minute.

It consumed a lot of electricity and emitted a lot of heat.

It was also called IBMASCC (International Business Machine Automatic Sequence Control Calculator).

photo credit:history-computer.comThis project was a joint partnership between IBM and Harvard University.

It can automatically perform a sequence of arithmetic operations: addition, subtraction, multiplications, division and table reference.

It could add or subtract two of numbers in three – tenth of a second, multiply them in four seconds.

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