<It is the LSI-11 built into a VT100 thingy (a PDT-11?) The cards are from <left to right: <LSI=11/03 processor, RQDXn disk controller, Memory (looks like an M8044), <serial port, and RX01 floppy controller. A cute system and well worth the <dollar that is currently bid :-) <--Chuck PDT-11 was a boardset without Qbus. More correctly it's a varient of a VT103, Vt100 with a Qbus backplane. CPU can be LSI-11 or 11/23 series. DISK and IO options can vary. Allison