RELAY

Relay

A relay is an electrically operated switch. Many relays use an electromagnet to operate a switching mechanism mechanically, but other operating principles are also used. Relays are used where it is necessary to control a circuit by a low-power signal, or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits, repeating the signal coming in from one circuit and re-transmitting it to another. Relays were used extensively in telephone exchanges and early computers to perform logical operations.

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relay

Noun

  1. A new set of hounds.
  2. A new set of horses kept along a specific route so that they can replace animals that are tired.
  3. A series of vehicles travelling in sequence.
  4. A track and field discipline where runners take turns in carrying a baton from start to finish. Most common events are 4x100 meter and 4x400 meter competitions.
  5. An electrical actuator that allows a relatively small electrical voltage or current to control a larger voltage or current.

Verb

  1. To release a new set of hounds.
  2. To place (people or horses) in relays, such that one can take over form another.
  3. To take on a new relay of horses; to change horses.
  4. To pass on or transfer (information).

Verb (etymology 2)



The above text is a snippet from Wiktionary: relay
and as such is available under the Creative Commons Attribution/Share-Alike License.

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