![]() One was universal data exchange, which would be supported by a set of common data structures used in all of their programs. They decided that there were three key concepts. For instance, to use VisiPlot with VisiCalc data, the numbers to be plotted had to be exported in a "raw" format and then re-imported.ĭan Fylstra led a technical discussion on what sorts of actions the user would need to be able to accomplish in order for their products to be truly integrated. Ed Esber introduced the concept of a "family" of products that could be sold together, but from a technical perspective none of their products were similar in anything but name. In the spring of 1981, Personal Software was cash-flush from the ever-increasing sales of VisiCalc, and the corporate directors sat down and planned out their future directions. ![]() ![]() 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. VisiCorp's 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 DOS. ![]()
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