The only "technical superiority" of CP/M that I can think of is having files associated with separate users, though I can't imagine anybody ever used this. The

The only "technical superiority" of CP/M that I can think of is having files associated with separate users, though I can't imagine anybody ever used this. The PIP command, copied from DEC OSes, was a lot more awkward than COPY in DOS. But a significant problem with CP/M was that if you swapped a floppy disk in a drive the system wouldn't notice it and things could get really messed up, so you had to remember to always control-c after changing disks. DOS would check, which reduced performance but was much more user friendly.