Textra (1985) 4 Word Processor DOS

Textra, from the University of Michigan based Ann Arbor Software, was a small and fast word processor highly optimized for speed and rapid data entry. First released in 1982 Textra, like many other early PC word processors, was born out of the lack of a decent IBM PC editor/word processor. Textra featured a full set of text manipulation commands, common text formatting abilities, and full screen editing. It was specifically designed for the IBM PC, giving it faster load and save times and the most responsive user interface possible. It was priced much lower than most other text editors or word processors.

• 6.0

THINK C (1988) 3 MacOS

THINK C, originally from THINK Technologies and later Symantec, was a C compiler for the Apple Macintosh. Initially released in 1986 under the name "Lightspeed C", it featured libraries and extensions useful to creating native Macintosh applications. It competed with Macintosh Programmers Workshop.

• 5.x

WordPerfect (1983) 51 Word Processor OS2

During the late 1980's, WordPerfect was THE standard word processor for DOS based PCs in big business. Under DOS, it competed mostly against Wordstar. WordPerfect for Windows enjoyed some success in the early Windows environments, but was quickly displaced by Microsoft Word for Windows. Later Windows versions were part of Borland Office/Novell PerfectOffice/Corel Office/Corel WordPerfect Office.

• 5.0 (OS/2)

WordStar (1981) 28 Word Processor DOS

WordStar, originally from MicroPro, was a popular word processor during the early 80s. It was ported to a number of CP/M architectures as well as Unix and PC/MS-DOS. It competed directly against many word processors, including WordPerfect, Microsoft Word for DOS, and Multimate. By the late 80s most business word processing had moved to WordPerfect. In the early 90s, Microsoft Word for Windows took over.

• 6