On 3/10/23 10:20, Bill Gunshannon via cctalk wrote: > The first mainframe I worked on was single user, single tasking.
S/360 DOS provided for one "background" memory partition and two "foreground" ones. Batch submissions would be background, with some installations using the smaller foreground ones for interactive use. I believe that one of the pioneers in this was IIT with their Chicago-area high school operation. IITRAN using remote TTYs on a 360/40. https://en.wikipedia.org/wiki/IITRAN --Chuck
