Mark I

 

• 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:

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

2. It could do three additions or subtractions in a second.

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

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

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

   
   

   
   
   
   
   
   photo credit:history-computer.com

6. This project was a joint partnership between IBM and Harvard University.

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

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