mrbluecoat parent
Another decent read on this subject is 'Dealers of Lightning: Xerox PARC and the Dawn of the Computer Age' by Michael A. Hiltzik
This is my favorite geeky non-fiction book.
[•] <https://www.amazon.com/Dealers-Lightning-Xerox-PARC-Computer...>
In addition to all the technical detail, you learn so much about corporate hubris in their massive quest for non-innovation (resting on their laurels).
C-level staff ignored the brilliance of their Alto computer, invited Steve Jobs over in exchange for a few shares of AAPL IPO [which they almost-immediately sold], and left all their computer researchers scratching their heads as to why staff were being ignored.
Letting in Steve wasn't really an issue. Lisa failed and Mac wasn't a big success until the early 90s.
And tons of other people knew what they were doing. Andy Bechtolsheim visited there too. Sun workstation basically did the same thing and were very successful.
And its really the PC that would have anyway if they let in Jobs or not.