Computer Weekly@50: What was happening in IT in April over the years


April 5, 1973: Farewell to Atlas

Source:  TNMOC

The last and largest of the three Atlas I computers, on which for a period during the early 1960s, British claims to world leadership in computer design were based, was formally closed down last week.

Atlas introduced two important concepts to the field of computer design. These were the Supervisor, which was the first example of a comprehensive and largely automatic operating system, and, even more significantly, the “one –level” store”, which with its associated paging technique, is now better known as virtual memory.

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