There was also Concurrent CP/M (possibly only a /86 variant). On Sat, May 4, 2024 at 2:02 AM Bill Degnan via cctalk <cctalk@classiccmp.org> wrote:
> Herb Johnson has some good info on the history of cp/m here > https://www.retrotechnology.com/#dri > Bill > > On Fri, May 3, 2024, 8:23 PM Murray McCullough via cctalk < > cctalk@classiccmp.org> wrote: > > > I came across an article that said CP/M came out in April 1974. I > remember > > using this OS in the microcomputer world in the late 70’s; early 80’s. It > > came from PL/M, (Programming Language for Microcomputers) later renamed > > CP/M(Control Program for Microcomputers). I’m not sure what its legacy is > > though as far as I can recall it was wrapped up in litigation for quite > > some time. It was used in the 8-bit world but not sure what it's role was > > in the early PC world! > > > > Happy computing, > > > > Murray 🙂 > > >
