Presentation of Harvard Mark I

Date: August 7, 1944 • Location: Cambridge, United States

IBM presented the first program-controlled calculator to Harvard University, after which it became known as the Mark I (pictured).

International Business Machines Corporation, doing business as IBM, is an American multinational technology company headquartered in Armonk, New York, and present in over 175 countries. It is a publicly traded company and one of the 30 companies in the Dow Jones Industrial Average. IBM is the largest industrial research organization in the world, with 19 research facilities across a dozen countries; for 29 consecutive years, from 1993 to 2021, it held the record for most annual U.S. patents generated by a business.