
Dec. 23, 2021
11:55 p.m.
On Dec 23, 2021, at 18:52, Jeff Brower <jbrower at signalogic.com> wrote:
Mike-
I believe this comes from the era when RAM was limited and only one overlay/program could be loaded from the tape drive at a time
"tape drive" ... that's not an era, that's an epoch :-)
Not that long ago. QIC drives were standard, with optional harddrive, up until about twenty years ago with the 500 series generic & hardware... I guess it has been that long. I think the limitation was more of contention. Maintenance overlays are limited to only one, but DMO (provisioning) overlays could mostly be accessed simultaneously, iirc. The original DMS-10 was slightly different and earlier than the standard DMS (DMS100 family), with a lot of stuff a bit cruder.