But still, CP/M was, for a while, the industry-standard microcomputer OS, making Digital Research a powerful and important company. Wealthy companies that lose dominance over a market they formerly controlled don';t tend to just give up. Digital Research
put a substantial R&D effort into expanding and enhancing CP/M, creating a large family of OSes. It had some significant wins and big sales. Some of those products are still in use. All those products are arguably "CP/M derivatives", and as such, Bryan
Sparks'; 2001 edict might have just open-sourced them all.
One of the many giants we lost along the way.
https://www.osnews.com/story/135174/the-many-derivatives-of-the-cp-m-operating-system/
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