Microsoft Word is a word processor created by Microsoft. It was released in 1983 as a multi-tool word for the genix system. Later for various platforms including IBM, such as DOS , ( 1983), Apple Macintosh's Mac OS (1985) , AT&T Unix PC (1985), etc., and Microsoft Windows (1989). Released commercially with individual products or with Microsoft Office. Office Viewer and Office Online are available with limited features. Microsoft Word Developer Microsoft Permanent Release 15.0.4569.1508