A cable modem is a type of network bridge that provides bi-directional data communication via radio frequency channels on a hybrid fibre-coaxial, radio frequency over glass and coaxial cable infrastructure.

What is the difference between a cable modem and a router?

Your modem is a box that connects your home network to the wider Internet. A router is a box that lets all of your wired and wireless devices use that Internet connection at once and also allows them to talk to one another without having to do so over the Internet.

What does cable modem used for?

A cable modem is used for getting an Internet connection. Cable modems deliver broadband Internet access in the form of cable Internet. Cable modems can be used in your home or for your business. Regardless, it is an essential hardware device for Internet.