he state of execution of a program or control information, at 12a to 12d functional units which operate according to instructions from the CPU unit, at 21a to 21d an internal memory used to store data such as operating state or control information for the functional units 12a to 12d, at 14 a base unit in which the CPU unit 11 and the functional units 12a to 12d are incorporated, at 9a to 9d slots