Comment Re: What happened next (Score 1) 78
I can only speculate, but:
-I had heard that the IBM PC effort wasn't exactly fully supported by the wider IBM, so they had to make do and potentially might have had to be willfully overly optimistic to rationalize their plan to have so much of the system defined by freely implementable standards
-They might have hubris that BIOS was 'hard', at least the business leadership I could easily imagine thinking that, and no one is going to second guess them.
-They might have assumed copyright would have protected the interfaces, rather than technical difficulty.