Absolutely loved when I randomly caught an episode of Computer Chronicles back in the old time days.
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Yes, there are quite a few videos on YouTube about him, named “The man who should have been Bill Gates” but that’s just click baiting. Watch the special episode of “The Computer Chronicles” about Gary Kildall and see what his friends and business associates say about him.
Due to inflation, this is like $113 vs $679 today. It was a no-brainer to buy MS-DOS instead. Kildall clearly was a businessman wanting to make money off of it.
Not what I heard at the time - IBM accommodated what Kildall wanted. Kildall could have sold it separately at a competitive price.
BTW, I've read a lot of computer histories, and I often find errors in them. This is why professional historians try to use contemporary sources as much as possible.