<I know next to nothing about it and had no time to play with it, but I <assume it's an 8048 SBC with hex keypad, 7-seg LEDs, PROM programmer, etc. <from around 1977. < <I don't suppose anybody has docs or specs for this, eh? Did I mention <RARE? Anything but rare. It was the development, pre-ICEand eprom version programmer for the 8048 and 8049 (also 874x) parts. It has asimple debug monitor and also download capability. Many are still in use as the 874x parts are still in manufacture and use for low end controllers. Allison