Computer networking devices are units, that mediate data in a computer network. Computer networking devices are also called network equipment, Intermediate Systems (IS) or InterWorking Unit (IWU). Units which are the last receiver or generates data are called a host or a data terminal equipment.
Computer networking devices can be a ISDN TA, modem, hub, switch, network card, switching hub, router/gateway, multilayer switch, firewall or protocol converter.
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