M$ was never about building high quality software. It started off as a powerful legal force, just look up Billy's dad. They cannibalized many great ideas from other small companies trying to get a start. It was never about the people or the software. It was about billy and his legal power and profit.
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Yep, I didn't know his dad played a part though, that's interesting.
Be sure to check out how his mom helped him get mainframe time in school when she was a teacher. Plus how he was allowed to sell that time for favors and profit from it.