View source for Signal (disambiguation)

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'''Signal''' could refer to any of the following:-
* [[Signal (band)]]: A Bulgarian Rock band
* [[Signal (bridge)]]: A particular set of cards in [[contract bridge]] card game
* [[Signal (biology)]]: also termed ''biopotential'' - an electric quantity (voltage or current or field strength), caused by chemical reactions of charged ions. Also used for describing the transfer of information between and within cells, as in [[signal transduction]].
* [[Signal (computing)]]: A form of asynchronous interprocess communcation used in Unix, Unix-like, and other POSIX-compliant operating systems.
* [[Signal (circuit theory)]]: any information that has value to a particular electronic network. In a more concrete sense, the signals in a circuit are carried as changes in the voltages and currents of the circuit over time.
* [[Signal (communications)]]: In [[communications]], [[signal processing]], and in [[electrical engineering]], any time-varying quantity