Xerox PARC

The Xerox Palo Alto Research Center (PARC) is credited with pioneering the fusion of technologies of a raster display, mouse, and keyboard into an early graphical user interface (GUI) that would influence the development of modern personal computers.

Influence on Apple development
Prior to the launch of the Apple Lisa and Macintosh, Steve Jobs was allowed to bring engineers from Apple Computer to the PARC facilities to learn about UI innovations in the system. Larry Tesler, who provided the tour, was among Xerox employees who later joined Apple.

Books

 * Fumbling the Future: How Xerox Invented, Then Ignored, the First Personal Computer by Robert C. Alexander and Douglas K. Smith, iUniverse. 1999-06. ISBN 1583482660.
 * Dealers of Lightning: Xerox PARC and the Dawn of the Computer Age by Michael A. Hiltzik, Harper Business. 2000-04-05. ISBN 0887309895.