Don’t forget BOS/360. https://en.wikipedia.org/wiki/BOS/360
On Oct 16, 2025, at 07:33, Paul Koning via cctalk <[email protected]> wrote: On Oct 15, 2025, at 6:28 PM, Fred Cisin via cctalk <[email protected]> wrote: On Wed, 15 Oct 2025, Murray McCullough via cctalk wrote: According to historians, and I consider myself one, let us consider what classic/vintage computers were: The 1970s saw the three amigos: Apple II, TRS-80 and Commodore PET and the OS was DOS and its ilk + CP/M. "DOS"??!? Every operating system called itself "DOS" from 360 through micros. Indeed. The 360 early on had a DOS, the little brother of OS/360, and I think even a TOS though I never saw either. The first DOS I used was DOS-11, an amazingly crude single-user OS for the PDP-11. Mostly it was how we did system generation for RSTS-11, though in my first year in college it also was the OS for the physics department lab control computer. I fixed that the next year by moving them to RT-11. paul
