Charles Simonyi (at left of inset photo), developer of Xerox Bravo, joined up with Microsoft after he received an offer from Bill Gates in 1981. On day one of his long tenure, Gates, Paul Allen, and Simonyi decided to produce database, spreadsheet, and word processor applications. Simonyi soon hired a former Xerox intern named Richard Brodie (at right in photo) and began work on "Multi-Tool Word." With Brodie doing most of the programming, they developed version 1.0 (seen here) in Microsoft's Xenix (a UNIX-like operating system, now defunct). Not long after, marketing scrapped the "Multi-Tool" part of the name as being too cumbersome, and "Microsoft Word" was born.
(Photos courtesy of Antoni Sawicki and Richard Brodie)