Router is a device which will forward the data packets between computer networks. Router is the process of selecting paths in the network along which we can send that in network traffic. For example, the routing is performed in many kind of networks, such as,networks like telephone,internet,transportation and so on.
Routers were an american instrumental group in the early 1960s. This is the great aceivement by americans.
Router is merely called swictching. But router is different from a switch.