Micro-Expander Model 1 S100 system

A local used computer store is moving. Fortunately, they have been marking their cast off equipment as free and placing it on a table outside the store instead of tossing it in the dumpster. Tonight, I rode by the store on my way home from work and saw an interesting system - a Micro-Expander Model 1. Of course, I picked it up, along with a box of 8 inch floppy disks (apparently, RT11 versions 3 and 4.) I plan to return tomorrow during business hours to see if they have anything else of interest. Does anyone know anything about the Micro-Expander? Here's the information from the case: Expander Computer Model 1 Serial No. 1201522 Micro-Expander, Inc. Chicago, IL 60656 (incidentally, only about 5 miles from where it was found) The date codes on the chips are almost all in mid-1981. The main unit is a single piece about the size of a Processor Technology Sol. There is an external power supply, although the +5v and +12v regulators are located inside the main unit. The unit has a Z80 CPU and four S100 slots. The system board boasts 2 kbytes of SRAM (for the display?) , the CPU, a lot of 7400-series TTL, and two EPROMS marked "EXP MONITOR" and "SVENSKA BOKSTAVER" (Swedish ???? - possibly the character ROM?). The keyboard is in Swedish, and the unit was initially configured for PAL video, although that was easily changed by moving a DIP jumper block. Video output is (now) 80x24 composite NTSC, and there is a tape interface as well as RS-232 serial and parallel ports. Powering up the system brings up a monitor program. I'm assuming that this machine could run CP/M, given a few S100 cards with some RAM and a disk controller. Any other information? -- Scott Ware s-ware(a)nwu.edu