I haven’t read it, but heard good things about “The Soul of a New Machine” about Data Generals efforts create a new 32-bit superminicomputer.

https://www.tracykidder.com/the-soul-of-a-new-machine.html

Another comment mentioned “Pirates of Silicon Valley” as a good dramatization of MS/Apple and there’s also the miniseries “Valley of the Boom” about the rise and fall of Netscape and “Halt and Catch Fire” which is a fictional and thematic view of 80s/90s computer history.