| 摘要 |
The invention concerns a data processing system, comprising a first data processing device (1) having at least one program object; an interface device (2) connected to the first data processing device (1) and a second data processing device (7) that can be connected to the interface device (2) and that contains a read-only storage having at least a second program object, whereby the first and the second program objects have program interfaces for communicating with one another and the first program object is completely functional only when communication of the program object is enabled by the connection of the second data processing device (7) to the interface device (2). The second data processing device is preferably a portable device, for example a chip card, while the first data processing device is an ordinary computer.
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