Signal
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Signal, signals, signaling, or signalling may refer to:
Scientific concepts
- Signal (electrical engineering),is a physical quantity that can carry information.
- Signal processing, the field of techniques used to extract information from signals
- Cell signaling, in biology, the system of communication that governs basic cellular activities and coordinates cell actions
- Signal (biology), an electrochemical communication activity in an organism
- Two theories in different disciplines of "honest signalling" when deception may be incentivized:
- Signalling theory in evolutionary biology, a theory stating how organisms signal their state to others with respect to evolutionary survival and reproductive fitness
- Signalling (economics), how market actors can signal their intentions and values to others in economics
- Signalling game, signalling theories in evolutionary biology and economics expressed in terms of game theory
Computing:
- Signal (computing), an event, message, or data structure transmitted between computational processes and many other
- Signal programming, a variety of event-driven programming
- Signals and slots, a signal-driven software design pattern
Communications
- Signals used in various kinds of transport:
- Traffic light
- Railway signal
- Semaphore
- Beacon
- International maritime signal flags, using the International Code of Signals
- Signals (military), a name that refers to military communications
- Distress signal
- Smoke signal (See also Category:Early telecommunications)
- Signalling (telecommunications), a part of some communication protocols
Names
- Signal (band), a Bulgarian rock band
- Signals (album), an album by progressive rock band Rush
- Signal (magazine)
- Signal (toothpaste)
- Signal 1 and Signal 2 radio stations
- Signaal (now Thales Nederland), a Netherlands based defence company
- Signal Systems, a company of the McLean Group of Companies
Other
- Any implicit, subtle, or disguised message, in situations such as:
- Partnership card games (see Signal (bridge))
- Signals in legal citations
- Kent (game) a card game also known as Signal or Kemp