| 摘要 |
A system for managing the interaction of programs is provided, comprising means for storing a set of predetermined characteristics respecting each program to be managed, each set of characteristics including an input signal type characteristic indicative of the identity of the type of inputs signals to which the program associated with the set of characteristics, is responsive and a signal modification characteristic indicative of whether a type of input signal is to be modified by the associated program; means responsive to input signals having predetermined properties emitted from one of the programs for interrogating each set of predetermined characteristics in a predetermined sequence, determining whether the associated program is responsive to a current input signal, determining whether the properties of the current input signal are to be modified and, if so, modifying the properties of the input signal; and means for emitting an output signal to the programs determined to be responsive to the input signal.
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