The Free On-line Dictionary of Computing (30 December 2018):

WordPerfect

   1.  A word processor for a wide range
   of computers.  The first version was sold in 1980 for Data
   General machines, and by the end of 1993 versions were on
   sale for MS-DOS, Microsoft Windows and Macintosh
   computers.  WordPerfect 6.0 for Unix was scheduled for
   introduction in May 1994.

   Versions: WordPerfect 6.1 for Windows, WordPerfect 3.1 for
   Macintosh/Power Macintosh, WordPerfect 6.0 for UNIX,
   WordPerfect 6.0 for DOS, WordPerfect 7.0 for Windows 95.

   [Distinguishing features?]

   (http://corel.com/products/wordperfect/).

   2. WordPerfect Corporation.

   (1995-07-05)