Visi On (also known as VisiOn) is an operating environment for MS-DOS, developed by VisiCorp and released in December 1983. Visi On was the first software with a graphical user interface (GUI) for the IBM PC. It was also one of the first GUIs available on any personal computer.
Visi On (also known as VisiOn) is an operating environment for MS-DOS, developed by VisiCorp and released in December 1983. Visi On was the first software with a graphical user interface (GUI) for the IBM PC. It was also one of the first GUIs available on any personal computer.
Source: Wikipedia "Visi On" · CC BY-SA 4.0
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