This does look like only a peice of a dev system. I don't see any thing in there that could fuction as a custom co-processor. It looks more like it functioned as the keyboard and I/O interface.
I also recall years ago that some one talked of displaying the Lorraine proto boards at some clubs or meetings. Reportedly non-functioning. Could it be that these peices were some how separted long ago taking different paths?
Any one esle recall mention of those co-processor cards?
Plaz
