LOCAL AREA NETWORKS (LAN)

Local area networks are locally effective computer networks that connect nearby devices and locally managed computers in a limited area like workplaces, homes, offices, schools and campuses. Local area networks are also used for sharing resources and services like files and applications.

Network diagrams are used to explain the physical and logical structures of local area networks. There are two kinds of communication technologies for local area networks, Ethernet and Wireless. A traditional Ethernet network consists of hubs and administrators that devices connect to via Ethernet cables. A traditional wireless network connects devices and provides data transfer from wireless connection points using signalization. Both technologies allow devices to connect directly. The uses of local area networks are limited to these.



WIDE AREA NETWORKS (WAN)

Wide area networks are special communication networks that include multiple local area networks and are effective in larger geographical areas like cities and countries, in proportion to local area networks. Internet is the biggest current wide area network and, as a whole, connects local area networks and metropolitan area networks. A corporation's wide area network connects the corporation's different departments like the headquarters, branches and cloud services.

Devices connected to wide area networks can connect to each other via rental circuits, satellites or internet connections with the help of telecommunication systems. Internet Service Providers can be used to make these connections.

Router devices that connect independent networks are used to connect multiple local area networks within wide area networks. Routers help connect all networks that belong to wide area networks. Wide area networks also provide user access to applications, services and resources. Users can access the desired applications, services or resources from a single central area.