This is a Vintage 1976 Cromemco 8K Bytesaver Rev 2 NV Memory & EPROM programmer S100 Board which appears to be Incomplete.
From the inventory of a store that closed around the turn of the century, it was held in storage before being purchased by us. The programming power switch and some other discrete components are missing - it could have been a kit build that was never completed, a faulty board being repaired or a donor board from which components were being harvested. Untested and, because vintage components can fail at any time, it is sold as-is, officially \"for parts or not working\" with no guarantee of functionality or completeness whatsoever.