Not unlike a regular modem, Cable Modems are devices that enable you to hook up your computer to a local cable (coax, fibre optic etc.) operators service and receive data, voice and or Television services all in one. This technology is often built into the operators Set-Top-Box unit, although some will offer separate modems / network (Ethernet/NIC) cards. Modern Cable Modems tend to include Router style features too.

Please visit the following section for a more detailed description of cable broadband technology:

http://www.ispreview.co.uk/broadband_cable.php