Harvard Mark I
The IBM Automatic Sequence Controlled Calculator (ASCC), called the Mark I by Harvard University, was the first large-scale automatic digital computer in the USA. It is considered by some to be the first universal calculator. The electromechanical ASCC was devised by Howard H. Aiken, created at IBM, shipped to Harvard in February 1944, and formally delivered there on August 7, 1944. The main advantage of the Mark I was that it was fully automatic—it didn't need any human intervention once it started. It was the first fully automatic computer to be completed. It was also very reliable, much more so than early electronic computers. It is considered to be "the beginning of the era of the modern computer" and "the real dawn of the computer age".
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