kaabelmodem

A kaabelmodem, or cable modem, is a type of network bridge that modulates and demodulates digital data signals, allowing a computer or router to access the internet over a coaxial cable television network. It acts as the interface between a home or business network and the cable company's infrastructure. Unlike dial-up modems that use telephone lines, cable modems utilize the same coaxial cables that deliver cable television services.

Cable modems work by transmitting and receiving data over a specific range of radio frequencies on the cable network, separate from the frequencies used for television channels. This allows for high-speed internet access. They typically connect to a computer or router via an Ethernet cable and to the wall outlet via a coaxial cable. The technology used is based on the DOCSIS (Data Over Cable Service Interface Specification) standard, which ensures interoperability between modems and cable network equipment from different manufacturers.

The speed of a cable modem is determined by factors such as the DOCSIS version it supports, the bandwidth allocated by the cable provider, and the number of users sharing the same network segment. While they offer significantly faster speeds than older internet technologies, performance can sometimes be affected by network congestion. Cable modems are a common choice for residential internet access due to their speed and reliability.