Reply to post: who owned CPM

Microsoft liberates ancient MS-DOS source from the museum and sticks it in GitHub

who owned CPM

As I remember it Digital Research did not actually own most of the CPM source code as it was re-written as class exercises by Kildall's students and was in the public domain. Only about 2K bytes were owned Kildall. Hence the large number of CPM clones and ports.

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