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Continue to ChatSlide rule - William Oughtred Invented https://informationq.com/a-brief-history-of-the-computer-with-timeline/slide-rule-william-oughtred-invented/
Slide rule - William Oughtred Invented https://informationq.com/a-brief-history-of-the-computer-with-timeline/slide-rule-william-oughtred-invented/