Yeah, I feel for you.
How about one of these?
While you S100 users got CPM before we got an operating system, our final operating system, Microware's OS9, was a multiuser, multi-tasking OS that supported position independent re-entrant code.This system supported a 2Mhz 6809, a 6845 VDP, a serial card with 8 ports, parallel card, floppy controller and hard disk controller.
Come to think of it, my first experience with floppies was on a Wang 2200 which used 5.25 floppies that had more than one hole punched in the normal area for timing. Expensive disks (I think they were about $7.00 each at the time).
