I couldn't find anything regarding their Alto system, widely regarding as the first computer graphical operating system when it was developed in the late 1970s
https://en.wikipedia.org/wiki/Xerox_Alto
, from their Palo Alto Research Center (PARC).
Aaand I think I just figured out why the modern Xerox multi-function Xerox copier/scanner/printers we have at work are called AltaLink
pjmlp|5 months ago
"Early software for the Alto was written in the programming language BCPL, and later in Mesa, which was not widely used outside PARC but influenced several later languages, such as Modula."
AfterHIA|5 months ago