Multifunctional IC-card

Described is the integration of multiple application programs on a smart card, without the application programs stored on access to each other, which is achieved by a separation and decoupling of the individual programs with each other. A first embodiment has a plurality of mutually independent units, each consisting of a processor unit and a memory unit on. A communication of these independent units with the outside world and also with each other via a control unit. Communication of the independent units with each other can only take place via the respective processor units, so that the connected storage units can not be accessed without bypassing the corresponding processor unit. In a further embodiment, the separation of different applications on a chip card with only one processor by the insertion of a separation of the application parts in the memory area of ​​the smart card takes place. The separation causes each application to access only a settable area within the memory, and prevents access outside the default memory area for that application.