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A '''network card''' (also called '''network adapter''', '''network [[interface]] [card]''', etc.) is a piece of [[computer hardware]] designed to provide for [[computer communication]] over a [[computer network]].
The communication is usually carried out in accordance with a certain [[protocol]] such as [[ethernet]] or [[token ring]] among small groups of computers on the same [[LAN]], and through a routable protocol, such as [[Internet Protocol|IP]], for large-scale network communications.
A network card typically has a [[twisted pair]] or [[BNC connector]] socket where the network cable is connected, and a few [[Light-emitting diode|LED]]s to inform the user of whether the network is active, and whether or not there is data being transmitted on it.
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