Local area network - Wikipedia
https://en.wikipedia.org/wiki/Local_area_networkNetwork topology describes the layout of interconnections between devices and network segments. At the data link layer and physical layer, a wide variety of LAN topologies have been used, including ring, bus, mesh and star. Simple LANs generally consist of cabling and one or more switches. A switch can be connected to a router, cable modem, or ADSL modem for Internetaccess. A LAN can include a wide variety of ot…