I recommend reading "Idea Man" [1] by Paul Allen, Microsoft's cofounder, to understand the deep and early involvement he and Bill Gates had with computers.
I also recommend Hard Drive (1992) [2] for a deeper look into the business side of Bill Gates.
Regardless of any negative opinions about him, I believe Bill Gates was/is in a league of his own.
[1] https://en.wikipedia.org/wiki/Idea_Man
[2] https://www.amazon.com/Hard-Drive-Making-Microsoft-Empire/dp...