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  2. Computer network - Wikipedia

    en.wikipedia.org/wiki/Computer_network

    Network connections can be established wirelessly using radio or other electromagnetic means of communication. Terrestrial microwave – Terrestrial microwave communication uses Earth-based transmitters and receivers resembling satellite dishes. Terrestrial microwaves are in the low gigahertz range, which limits all communications to line-of-sight.

  3. Ethernet - Wikipedia

    en.wikipedia.org/wiki/Ethernet

    Symbol used by Apple on some devices to denote an Ethernet connection. Ethernet ( / ˈiːθərnɛt / EE-thər-net) is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). [ 1] It was commercially introduced in 1980 and first standardized in ...

  4. Network switch - Wikipedia

    en.wikipedia.org/wiki/Network_switch

    A network switch (also called switching hub, bridging hub, Ethernet switch, and, by the IEEE, MAC bridge[ 1]) is networking hardware that connects devices on a computer network by using packet switching to receive and forward data to the destination device. A network switch is a multiport network bridge that uses MAC addresses to forward data ...

  5. Wireless LAN - Wikipedia

    en.wikipedia.org/wiki/Wireless_LAN

    An example of a Wi-Fi network. A wireless LAN ( WLAN) is a wireless computer network that links two or more devices using wireless communication to form a local area network (LAN) within a limited area such as a home, school, computer laboratory, campus, or office building. This gives users the ability to move around within the area and remain ...

  6. Network interface controller - Wikipedia

    en.wikipedia.org/wiki/Network_interface_controller

    A network interface controller ( NIC, also known as a network interface card, [ 3] network adapter, LAN adapter and physical network interface[ 4]) is a computer hardware component that connects a computer to a computer network. [ 5] Early network interface controllers were commonly implemented on expansion cards that plugged into a computer bus.

  7. Network bridge - Wikipedia

    en.wikipedia.org/wiki/Network_bridge

    A network bridge is a computer networking device that creates a single, aggregate network from multiple communication networks or network segments. This function is called network bridging. [ 1] Bridging is distinct from routing. Routing allows multiple networks to communicate independently and yet remain separate, whereas bridging connects two ...

  8. Network socket - Wikipedia

    en.wikipedia.org/wiki/Network_socket

    Network socket. A network socket is a software structure within a network node of a computer network that serves as an endpoint for sending and receiving data across the network. The structure and properties of a socket are defined by an application programming interface (API) for the networking architecture. Sockets are created only during the ...

  9. Network topology - Wikipedia

    en.wikipedia.org/wiki/Network_topology

    Network topology is the topological [ 4] structure of a network and may be depicted physically or logically. It is an application of graph theory [ 3] wherein communicating devices are modeled as nodes and the connections between the devices are modeled as links or lines between the nodes. Physical topology is the placement of the various ...

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