Harvard Mark 1 Computer
The Harvard Mark I was a large machine designed to assist in the numerical computation of differential equations. It was designed by Howard Aiken at Harvard University and funded and built by IBM. The machine was known as the Harvard Mark I (or the IBM Automatic Sequence Controlled Calculator (ASCC)). Aiken demonstrated that a large calculating machine could be built that would provide speedy solutions to mathematical problems. He also designed the Mark II, III, and IV, as well as making important contributions to early computer science education.