PURPOSE: To provide an architecture and a method for operating a work station.
CONSTITUTION: The work station has a central processing unit 10, a bus interface unit circuit 30 and a control line 20. The central processing unit 10 is selected among a group of different central processing units in several operation parameters. The bus interface circuit is connected between an external bus 32 and the pertinent central processing unit. The control line 20 is connected to the interface circuit and a signal showing the type of the central processing unit connected to the circuit is given.