Multicomputer system

A multi-computer system consists of several mask-programmed microcomputers (1 to 6) connected to a communication bus (7), at least one microcomputer (1) being assigned a local external memory (12) via a local memory bus (8). In this case, all the microcomputers (1 to 4) have identical mask programming and the system can be expanded by adding further microcomputers (5, 6) with this mask program; each microcomputer (1 to 6) contains a dynamically configurable operating system (23) contained in its mask program ) with a configuration mapping table (21), the external memory (s) (12) of the microcomputer (s) (1) contain (s) a configuration table (17) and an application program (16), each configuration table ( 17) from an address data area (18),