Signal

Look up signal or signaling in Wiktionary, the free dictionary.

Signal, signals, signaling, or signalling may refer to:

Scientific concepts

• Signal (electronics), 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 (physiology), an electrochemical communication activity in an organism
• Two theories of "honest signalling" in different disciplines:
  • 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
• 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
• Signalling (telecommunications), a part of some communication protocols
• Recognition signal in human, technical or biological communications

Names

• Signal (band), a Bulgarian rock band
• Signal (American band), an American AOR band
• Signals (album), an album by progressive rock band Rush
• Signal (magazine), a Nazi propaganda magazine published in occupied Europe during World War II
• The Signal, a 2007 horror film
• Signal (toothpaste)
• Signal 1 and Signal 2 radio stations
• Signaal (now Thales Nederland), a Netherlands based defence company
• Signal Systems, a telecommunications company of the McLean Group of Companies
• Signal - The Southeast Electronic Music Festival, an annual music festival held in the United States

Ships

• USS Signal, the name of more than one United States Navy ship

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

See also

• Signal velocity
• The Signal

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.