cable modem Last modified: Thursday, July 14, 2005
A modem designed to operate over cable TV lines. Because the coaxial cable used by cable TV provides much greater bandwidth than telephone lines, a cable modem can be used to achieve extremely fast access to the World Wide Web. This, combined with the fact that millions of homes are already wired for cable TV, has made the cable modem something of a holy grail for Internet and cable TV companies. There are a number of technical difficulties, however. One is that the cable TV infrastructure is designed to broadcast TV signals in just one direction - from the cable TV company to people's homes. The Internet, however, is a two-way system where data also needs to flow from the client to the server. In addition, it is still unknown whether the cable TV networks can handle the traffic that would ensue if millions of users began using the system for Internet access. Despite these problems, cable modems that offer speeds up to 2 Mbps are already available in many areas. Also see Cable vs. DSL in Webopedia's "Did You Know...?" section.
•E-mail this definition to a colleague• Sponsored listings Comcast Internet: Official Site - Get Comcast Business Class Internet. Rates Starting at $39/Month Cisco Modems at Focus Technology - Focus is a leading provider of servers and IT hardware including Cisco Modems. Trained professionals serving our broad spectrum of product lines. Cisco Modems - Online seller of refurbished Sun Microsystems, Cisco, Juniper, and F5 networks hardware offers Cisco modems. For internet.com pages about cable modem . Also check out the following links! Article on cable modems  This Byte magazine article, from September 1996, provides information on the development of technologies that will solve bandwidth problems, with information on cable modems, ADSL, copper vs. coaxial, phone and cable problems, and infrastructure debates. Cable modem resource site  This resource page contains links to cable modem systems, including manufacturers, system trials, organizations, articles, and papers. CableLabs Web site  Defines interface requirements for cable modems involved in high-speed data distribution over cable television networks. Cable modem FAQ FAQ focusing on the speed of the cable modems, Internet traffic, and deployment issues. Cable Modem Information Provides links to sites that describe how cable modems work, as well as resources for software and tools, and information on sharing modems. CableLabs home page Home page for Cable Television Laboratories. Here, you'll find links to their research and development projects in the area of cable technology, collaboration efforts, cable Web sites, publications, and news. Sharing Cable Modems Good resource for information on sharing a cable modem connection with multiple computers. Contains clear, easy-to-follow instructions for both the PC and Mac, as well as other related resources. Yahoo!'s cable modems page Yahoo!'s directory of cable modems. Sponsored listings Time Warner Cable Business Class: Cable Internet Services - Internet solutions for businesses. Instant connectivity and fast downloads. Managed security for safe transmissions and storage of sensitive data CableWholesale.com: Network Routers - Wholesale supplier of cable and PC products, including cable/DSL routers and wireless broadband routers. Used and Refurbished Cisco Modems - Buys and sells used and refurbished network equipment, including Cisco modems.	Convergence Modems Peripheral Devices cable head-end CMTS DOCSIS WebTV Give Us Your Feedback Modems cable modem Products Shop by Top Models: Motorola SURFboard® SB5101 Cable Modem 3 store offers from $48 - $65 Motorola SURFboard SB5120 Cable Modem 1 store offers from $80 - $80 Linksys BEFCMU10 Cable Modem 1 store offers from $70 - $70 D-link (DCM-202) Cable Modem 13 store offers from $46 - $80 3Com OfficeConnect (3CR29210) Cable Modem 1 store offers from $31 - $31