What is a cable modem?
A cable modem is a device that allows high-speed access to the Internet via a cable TV network. A cable modem will typically have two connections, one to the cable wall outlet and one to a computer. Cable modems allow consumers access to the Internet at higher speeds and at a fraction of the time it takes traditional dial-up telephone modems. This is true for two reasons: 1) broadband networks make the connection up to a hundred times faster, and 2) the service is “always on,” meaning customers get the information they want, when they want it. Unlike telephone modems, cable modems allow consumers to keep their telephone lines open for voice conversations. Cable modems are “certified” interoperable with each other. Certification provides the retail customer with the assurance that the cable modem complies with the DOCSIS specification and will interoperate with other certified modems and qualified headend systems.
A cable modem is a device that attaches to your personal computer and to your television cable. The cable modem has two connectors on the back. We connect one to your cable TV wire, just as if the modem were a TV set. We connect the other one through a NIC (Network Interface Card) that is installed in your computer.
