ASCI u68 System X computer

Does anyone know anything about the computer above? They appear to be educational single board computers. A strip along the frond edge, lists a number of commands to set breakpoints, jump in memory, examine memory, etc. I found a pile of them at an auction preview. They're single board computers that are mounted in a wooden boxs that measures roughly 10" x 12" x 2". The box has a smoke colored plastic lid that's hinged in the back. When it's closed, everything is covered except for a 3 x 4 keypad. The CPU board appears to use the Motorola EXOR-bus and has a Motorola 6800 CPU. There is a smaller card on the RH side that has the keypad and six digit seven segment LED display. The ICs are dated 1979 and 1980. These appear to be part of a system. I found several other boxs that were also made by ASCI. One of them has a micro-cassette drive. Another is a switch box that switchs between a printer, punch, etc. Another larger box has relays and a bunch of terminal strips on it. It appears that it's meant to be controlled from the CPU box and can operate a good number of external devices. I need to know what they are before Saturday. Joe