VisiCorp was an early personal computer software publisher. Its most famous products are Visi On and VisiCalc. VisiCorp Visi On was a short-lived but influential graphical user interface-based operating environment program for IBM PC compatible personal computers running early versions of MS-DOS. Although Visi On was never popular (as it had steep minimum system requirements for its day), it was a notable influence on... VisiCalc was the first spreadsheet program available for personal computers. ...
It was founded in 1976 by Dan Fylstra as Personal Software, and in 1982 was renamed "VisiCorp" with the success of VisiCalc. VisiCorp was an early personal computer software publisher. ...
VisiCorp was sold to Pallidan Software after a legal feud between Software Arts (the author) and VisiCalc and VisiCorp.
VisiCalc was the first spreadsheet program available for personal computers. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... Software Arts was a software company founded by Dan Bricklin and Bob Frankston in 1979 to develop VisiCalc, which was published by a separate company, Personal Software Inc. ... Vision may mean: Visual perception via the visual system, one of the senses. ... Gui is short for Guilherme or Guilhermo or an iteration of that, in English it translates to Will. ...
Reference
VisiCorp - VisiCorp information on Ed Esber's official website
VisiCorpVisi On was a short-lived but influential graphical user interface-based operating environment program for IBM PC compatible personal computers running early versions of MS-DOS.
Although Visi On was never popular (as it had steep minimum system requirements for its day), it was a notable influence on the later development of Microsoft Windows.
Visi On was written in a subset of C, so it was probably expected that a third-party might port the software to Unix, but that never occurred.