![May 1944 Harvard Mark-I. Relay based calculator built by IBM. | Computer history, Computer history museum, Computer technology May 1944 Harvard Mark-I. Relay based calculator built by IBM. | Computer history, Computer history museum, Computer technology](https://i.pinimg.com/736x/29/c9/c7/29c9c74d711f2011008ab7ea2776adff.jpg)
May 1944 Harvard Mark-I. Relay based calculator built by IBM. | Computer history, Computer history museum, Computer technology
![Key Aspects of the Development of the Harvard Mark 1 and its Software by Howard Aiken and Grace Hopper : History of Information Key Aspects of the Development of the Harvard Mark 1 and its Software by Howard Aiken and Grace Hopper : History of Information](https://historyofinformation.com/images/Aiken_&_Hopper_Manual_dust_jacket.jpg)
Key Aspects of the Development of the Harvard Mark 1 and its Software by Howard Aiken and Grace Hopper : History of Information
![1944 Computer History: IBM ASCC "Harvard Mark 1" world's largest electro-mechanical calculator - YouTube 1944 Computer History: IBM ASCC "Harvard Mark 1" world's largest electro-mechanical calculator - YouTube](https://i.ytimg.com/vi/bN7AdQmd8So/maxresdefault.jpg)
1944 Computer History: IBM ASCC "Harvard Mark 1" world's largest electro-mechanical calculator - YouTube
IOP Publishing - The world's first program-controlled calculator is presented to Harvard University by IBM #OnThisDay in 1944. https://bit.ly/2E0wtnt | Facebook
IEEE - Designed in 1937 by Howard H. Aiken, a Harvard University graduate student, the Mark I was set to solve advanced mathematical physics problems encountered in his research. Aiken eventually partnered
![A manual of operation for the Automatic Sequence Controlled Calculator by the staff of the Computation Laboratory | Howard AIKEN, Grace Murray HOPPER | First edition A manual of operation for the Automatic Sequence Controlled Calculator by the staff of the Computation Laboratory | Howard AIKEN, Grace Murray HOPPER | First edition](https://sophiararebooks.cdn.bibliopolis.com/pictures/5623.jpg?auto=webp&v=1647098881)