A cable modem is a type of broadband modem that utilizes the same coaxial cable network as cable TV to transmit data to and from the internet. There are several synonyms for cable modem, including broadband modem, internet modem, cable internet modem, and high-speed modem. These terms all refer to the same device that provides a high-speed internet connection via cable infrastructure. Some newer technologies that are being developed may replace cable modems, such as fiber optic connections and 5G cellular networks. However, for now, cable modems remain the most common and effective way to access high-speed internet in most residential and business settings.