Apart from transputers mentioned already, there’s https://greenarrays.com/home/documents/g144apps.php

Both the hardware and the forth software.

APIs in a B2B style would likely be much more prevalent, less advertising (yay!) and less money in the internet so more like the original internet I guess.

GUIs like https://en.wikipedia.org/wiki/SymbOS

And https://en.wikipedia.org/wiki/Newton_OS

Show that we could have had quality desktops and mobile devices