Three product lines co-existed: Word 1.0 to Word 5.1a for Macintosh, Word 1.0 to Word 2.0 for Windows and Word 1.0 to Word 5.5 for DOS. Word 1.1 for DOS was released in 1984 and added the Print Merge support, equivalent to the Mail Merge feature in newer Word systems. Word 5.1 for Mac runs on the original 68000 CPU, and was the last to be specifically designed as a Macintosh application. The later Word 6 was a Windows port and poorly received, causing many users to stubbornly stick with Word 5.1. Installation instructions. This archive contains six 800k disk images that can be used with VMac or Basilisk II.
The Microsoft Word word processor was first introduced for MS-DOS in 1983. Its design made use of a mouse and WYSIWYG graphics. Its crude WYSIWYG/mouse support was a direct response to the Apple Lisa/Mac, and VisiCorp Visi On. Initially it competed against many popular word processors such as WordStar, Multimate, and WordPerfect. Word for DOS was never really successful.
The Mac version was introduced in 1985 where it acquired a friendlier user interface and gained some popularity. A Microsoft Windows version was introduced in 1989, although Palantir WinText, NBI Legend, and Samna AMI/AMI Pro had beaten them to their own Windows platform. For a time Word for Windows competed with WordPerfect for Windows. There were also ports to OS/2, the Atari ST, and Unix.
The DOS, Mac, and Windows versions are quite different from each other, and each restarted their version numbering at '1.0'. Later versions are bundled with Microsoft Office. Also see a complete list of word processors archived on Winworld.
Screenshots
Release notes

Word 5.1 for Mac runs on the original 68000 CPU, and was the last to be specifically designed as a Macintosh application. The later Word 6 was a Windows port and poorly received, causing many users to stubbornly stick with Word 5.1.
Word 5 1 For Mac Os
Installation instructions
This archive contains six 800k disk images that can be used with VMac or Basilisk II. The same DiskCopy disk images are also included in a Stuffit archive for use within MacOS.
Word 5 1 For Mac Download
Wanted: Microsoft Word 5.0 for Macintosh, manual scans.
