Router:-

                     Routers are used to find a route for the messages to travel in large networking or while connecting two or more networks, these can be used in place of a switch in large networks. These can be wired or wireless.

Routers are devices containing software that help in determining the best path out of the available paths for a particular transmission. They consist of a combination of hardware and software. The hardware includes the physical interfaces to the various networks in the internetwork. The two main pieces of software in a router are the operating system and the routing protocol.