What Is the Definition of Signals?

Answer

A signal is a sign made for the purpose of giving notice to a person of some occurrence, command, or danger. It is also, a sign, event, or watchword, which has been agreed upon as the occasion of concerted action. In electronics, a signal is an electric current or electromagnetic field used to convey data from one place to another.
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Ask.com Answer for: what is the definition of signals
sig·nal
[sig-nl]
NOUN
1.
anything that serves to indicate, warn, direct, command, or the like, as a light, a gesture, an act, etc.: a traffic signal; a signal to leave.
2.
anything agreed upon or understood as the occasion for concerted action.
3.
an act, event, or the like that causes or incites some action: The unjust execution was the signal for revolt.
4.
a token; indication.
5.
Electronics. an electrical quantity or effect, as current, voltage, or electromagnetic waves, that can be varied in such a way as to convey information.
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Source: Dictionary.com
Signal is a gesture, action, or sound that is used to convey information or instructions, typically by prearrangement between the parties concerned. It is also an impulse or a fluctuating electric quantity, such as voltage, current, or electric field strength, whose variations represent coded information.
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