Hi Tony and all
It might have run CP/M (which will run on an 8080, and therefore on an 8085). That needs RAM at location 0000 [1].
I know of CP/M, I even used CP/M (on my Apple) but I did not know it needs RAM at 0000. That's kind of strange, since everything that ran CP/M (OK, everything -80) has vectors at 0. I guess there was a reason behind it. I see the CPU board has a jumper "F000/F800" so I guess it does something to map that address to 0 after reset.W
