Routers are small physical devices that join multiple networks
together. Technically, a router is a Layer 3 gateway device, meaning
that it connects two or more networks and that the router operates at
the network layer of the OSI model.Routers take information that arrives
through your broadband signal via a modem, decipher it, and deliver it
to your computer. The router will also choose the best route for the
data packet so that you receive the information quickly.Many different
types of routers have been developed so that the information coming over
your broadband connection can be sent to a variety of different
receivers including your computer, your phone, and others.