>>510548157
There was the xerox alto in 73, and xerox star in 81 and before both of those there was the "mother of all demos" in 1968.

https://en.wikipedia.org/wiki/The_Mother_of_All_Demos

https://www.youtube.com/watch?v=yJDv-zdhzMY

The computer paradigm we know of today is 60s tech thought of in the 40s.