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Chapter 44. Upgrading Your Modem > Understanding a High-Speed Internet Connecti...

Understanding a High-Speed Internet Connection

Cable and DSL modems and the high-speed connections they originate from are what we call broadband communications. Broadband is a type of data transmission in which a single transmission medium can carry multiple channels. Cable modems are attached to the same coaxial (coax) cable that brings cable TV into your living room; DSL modems are connected to the same copper wires that provide your basic telephone service.

Just as you can watch cable TV at the same time you can surf the Web with a cable modem connection, you can likewise talk on the telephone at the same time you surf the Web using your DSL connection.



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