On May 14, 2018, at 9:58 AM, Steve Thompson <[email protected]> wrote: > >> 1. m$ started with QDOS, not CP/M > > I wish I still had the documents -- but a long story quite short: I was told > CP/M, and the very first copy of MS/DOS that I got, had the same commands and > lack of sub-folders that CP/M I had been using had. Granted, I was not a > power user of that system, I was experimenting with it. So I didn't have any > reason to question what had been said back then. > > I don't remember QDOS itself -- I have a hazy memory of the name. > >> 2. CP/M was influence by RT-11 > > Thank you for this. I Couldn't remember the precise system, but I knew it was > involved with a *nix type OS.
If you believe Wikipedia (https://en.wikipedia.org/wiki/CP/M#The_beginning_and_CP/M's_heyday) “Various aspects of CP/M were influenced by the TOPS-10 operating system of the DECsystem-10 mainframe computer, which Kildall had used as a development environment.” and (https://en.wikipedia.org/wiki/86-DOS) “Initially known as QDOS (Quick and Dirty Operating System), the name was changed to 86-DOS once SCP started licensing the operating system in 1980. 86-DOS had a command structure and application programming interface that imitated that of Digital Research's CP/M operating system, which made it easy to port programs from the latter. The system was purchased by Microsoft and developed further as MS-DOS and PC DOS.” (I should say that I do believe Wikipedia, at least on this topic. This matches pretty closely to what I remember reading elsewhere.) -- Pew, Curtis G [email protected] ITS Systems/Core/Administrative Services ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
