Virtual PC (1996) 34 Virtualization MacOS Mac OS X

Virtual PC started off originally as an x86 emulator for PowerPC Macintosh to run MS-DOS and Microsoft Windows. Connectix, the company that made it, was purchased by Microsoft. Virtual PC was then retooled into a virtualization tool for x86 systems. Microsoft discontinued Virtual PC in favor of a server-oriented virtualization product called Hyper-V.

• 5.x
• 6.x
• 7.x

VisiCalc (1982) 8 Spreadsheet Other

VisiCalc was the first spreadsheet program for personal computers. It was extremely successful, and pivotal as it was significantly responsible for moving personal computing out of the realm of hobbyists and in to the realm of serious business tools. application suite that also included VisiWord, VisiFile, VisiSpell, VisiTrend/Plot, and VisiTutor. a GUI based environment. But that did not catch on. The similarly named Visi On Calc spreadsheet is not at all related to VisiCalc, and later had to be renamed to Visi On Plan.

• Advanced Apple III

VMS (1990) 9 Other

The Virtual Memory System (VMS) is an OS originally designed for the DEC VAX line of servers. Over time, the OS grew to support Alpha and Itanium based machines. Released initially in 1977, the OS was a major competitor at the time to UNIX based machines.

• 4.x
• 5.5x
• 6.x
• 7.x
• 8.4

WebObjects Enterprise Objects (1995) 0 Other

WebObjects is an Objective-C web application server from Apple, and a server-based web application framework. It features object-orientation, database connectivity, and prototyping tools.

• 1.x

WordPerfect (1983) 132 Word Processor Other

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.

• 4.1 (Amiga)

Xenix (1984) 40 Other

Xenix was the variant of UNIX originally published by Microsoft, later sold to SCO. It added a variety of technical enhancements over System V Unix, including a menu-driven business shell. It was ported to many different platforms from a PDP-11 including the Altos 8600 (First x86 port), IBM PC, Intel System 86, TRS-80 Model 16, SCP Gazelle II, and Apple Lisa. The Xenix Software Development System, Microsoft Multiplan 2.x and Microsoft Multiplan 3.x, Microsoft Word 3.0 and Microsoft Word 5.x, and FoxBase Plus 1.00

• Apple Lisa