A computer terminal work station having multiple peripheral units simultaneously interconnected into the terminal. A micro processor controller is provided in the terminal and a micro processor slave is provided in each of the peripheral units. Each unit is provided with a bus segment and means to interconnect the bus segments to each other. A single cable extends from the terminal to one of the peripheral units to be connected to the bus segment of that unit, and thereby to the bus segments of all the interconnected units. The units are selectively mechanically interlocked as desired.
