Explain signals role in computer system?
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In signal processing, a signal is a function that conveys information about a phenomenon. In electronics and telecommunications, it refers to any time varying voltage, current, or electromagnetic wave that carries information. A signal may also be defined as an observable change in a quality such as quantity.
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A signal is an electrical or electromagnetic current that is used for carrying data from one device or network to another. It is the key component behind virtually all: Communication. Computing. Networking
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