What paradigm was pioneered by the systems developed at Xerox PARC, such as the Xerox Alto?

Answer

WIMP (Windows, Icons, Menus, and Pointers).

Xerox PARC researchers developed systems like the Xerox Alto which pioneered the WIMP paradigm, standing for Windows, Icons, Menus, and Pointers.

What paradigm was pioneered by the systems developed at Xerox PARC, such as the Xerox Alto?
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