He kind of speculates on a “what could have been” but I’m actually not sure what differentiates “Groupware” from what we have today. Is it less Unix-y?
The first time I encountered this idea was Microsoft Windows 3.11, aka “Windows For Workgroups”. If we take Microsoft at their word, it means that non-collaborative personal computing only really existed from 1977-1994 at the latest. Pretty short time in computing.
AppleTalk already existed and people were networking home computers before 1994. If we count Xerox’s office solutions, the window shrinks even more.