"4 INTEGRATED CIRCUIT CHIPS MTD ON A SGL 8-1/2 X 10 X 1/2 IN. PRINTED CIRCUIT BOARD WITHIN A RACK MOUNTABLE 3-1/2 X 19 X 1/2 IN. ASSY,3 CHIPS CONTAIN 400 INSTRUCTIONS,SGL AND DOUBLE OPERAND ADDRESSING,16-BIT WORD AND 8-BIT BYTE PROCESSING,8 GENERAL PURPOSE REGISTERS,HARDWARE STACK PROCESSING"