This document discusses accessing the internet through cable TV networks using a cable modem. It explains that a cable modem connects a computer to the cable network using coaxial cables, allowing transmission of internet data at speeds of up to 10 Mbps. It describes how cable modems work by modulating signals onto frequencies not used by TV programs for transmission over the cable infrastructure. The document outlines advantages like using existing cable without reconstruction, as well as disadvantages like limited availability. Applications mentioned include using cable modems to add high-speed internet to homes, buildings, and hotels.