1973 saw the creation of Disco and the Xerox Alto system. Disco may no longer be a thing, but everything created at Xerox PARC is very much with us today. I am reading this book.
The IEEE, in charge of the WiFi technology you’re probably using right now, and also Ethernet if that’s what you’re using, has this brief history of Xerox PARC.
https://spectrum.ieee.org/xerox-alto
Here’s some Disco. TSOP — The Sound of Philadelphia — by the late Thom Bell.