What was the key focus of research at Xerox PARC during the 1970s?

Answer

Refining direct manipulation concepts, focusing heavily on the desktop metaphor and icons.

Xerox PARC researchers built upon SRI's work by transitioning interactive concepts to practical desktop reality, refining direct manipulation, and focusing on the desktop metaphor and icons.

What was the key focus of research at Xerox PARC during the 1970s?
inventorhumancomputerinteraction