LANs can be of wireless or wired type.In wireless LAN access points can be used tointerconnect the LANs and to Connect wired LANs bridges can be used. By naghma
Network cards are used to connect a personal computer to a LAN. A computer with a network card can be a network participant.Hubs are used to connect participants (PCs and other LAN devices).Bridges are used to connect parts of LAN with each other. Possibly because they operate on a different medium (copper wire, glass fibre).Routers are used to connect networks with each other (LANs with other LANs; LANs with the internet, etc.)Switches are a mix between Hub and Bridge.
node
router
LAN can be connected by routers . A router can be used to connect to LAN's .a LAN to a WAN and LAN to Internet.
interface
A modem
Ethernet is the most popular network technology used on wired LANs. And IEEE 802 i.e Wi-fi is used for wireless LANs. -- By MyNarutoAnime ----
router
modem is device which is used to connect the Internet to computer
a hub
Generally Star Topology is used in LANs and HUB & SPOKE model is implementedon WAN Links (not necessarily) to connect Branche Offices.