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Definition: Internet service


There are four transport methods available for Internet service to the home or office: cable, telephone, satellite and cellular. Cable companies route coaxial cable to the premises, while telephone companies generally have phone wires already on premises. Satellite companies can reach every home or office as long as there are no obstructions such as tall trees. Non-mobile cellular service is the most recent approach, as long as the home or office is within the reach of a cell tower.

In all cases, the signals that reach the premises are routed into a modem that demodulates the channels. The modem output goes into a router or receiver that has both a Wi-Fi antenna and some number of wired Ethernet ports. See wireless router and ISP.