A router is a networking device that forwards data packets between computer networks). It connects two or more packet-switched networks and allows multiple devices to use the same internet connection. Routers perform the traffic directing functions between networks and on the global internet). They guide and direct network data, using packets that contain various kinds of data such as files, communications, and simple transmissions like web interactions. Routers can be built from standard computer parts but are mostly specialized purpose-built computers). They can also provide security, as embedded firewall and content filtering software provide additional protection from unwanted content and malicious websites without affecting your online experience.
Routers can be distinguished based on the network in which they operate. A router in a local area network (LAN) of a single organization is called an interior router. A router that is operated in the internet backbone is described as an exterior router. A router that connects a LAN with the internet or a wide area network (WAN) is called a border router or gateway router).
Routers can broadcast a wireless signal (Wi-Fi) to connected and enabled devices, but they are not only for Wi-Fi. Routers also offer hard-wired connections to the internet. Once the router connects to internet data through hard wire or Ethernet, it can then translate that connection into a transmittable Wi-Fi signal that capable devices can pick up. You can also hard-wire your computer into the router and use it for a wired internet link.
In summary, a router is a device that connects networks to each other, forwards data packets between computer networks, and allows multiple devices to use the same internet connection. It can be built from standard computer parts but is mostly specialized purpose-built computers. Routers can provide security and can be distinguished based on the network in which they operate. They can broadcast a wireless signal and offer hard-wired connections to the internet.
