Function of Router

A router is a more sophisticated network device than either a switch or a hub. Like hubs and switches, network routers are typically small, box-like pieces of equipment that multiple computers can connect to. Each feature a number of "ports" the front or back that provide the connection points for these computers, a connection for electric power, and a number of LED lights to display device status. While routers, hubs and switches all share similar physical appearance, routers differ substantially in their inner workings.

Function of Network Switch

In home networking, hubs and switches are technically only there for the cable network. Wi-Fi routers include built-in access point that is roughly equivalent to moving the cable.

In the telecommunications network, the switch is a device to channel data from multiple input multiple ports for input into a specific output port that will take the data to the destination. In the traditional telephone network switching circuit, one or more switches are used to create a dedicated connection, either temporarily or circuit for an exchange between two or more parties.