What is Router ?

In the packet network like the Internet, a router, a device or in some cases, software in a computer, network, next to a packet should be forwarded to their intended destination. The router is connected to at least two networks and decides which way to send each packet of information on the latest findings on the state of networks connected to them. A router is located at each gate (where one network meets another), including each point of presence on the Internet. A router is often part of a network switch included.