I don’t think that’s true at all. IBM was forced to be fairly open/standard because that was the only way to quickly enter a rapidly growing and changing segmen

I don’t think that’s true at all. IBM was forced to be fairly open/standard because that was the only way to quickly enter a rapidly growing and changing segment. They tried to drag it to proprietary with their follow-on PS2 and only cratered their business, all without antitrust intervention.