<> Something about the unit suggests that the previous owner ran CP/M on it <> but as to just what that clue is I will leave without explaination. (tha <> way you have to look at the pictures) <G> Whyy not all the needed items are there... at least 20k of ram, IO, a disk system and the 8080 or z80 cpu. Common crate to run cpm on as it was solidly built. <> Hmmm... I wonder if there is a copy of IMSDOS buried around here <> somewhere??? <BG> Good luck! Allison