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Get info about the Encyclopedia of Networking and Telecommunicatons, 3rd edition (2001)
Download the electronic version of the Encyclopedia of Networking, 2nd edition (1996). It's free! Contribute to this site Electronic licensing info
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ADSL (Asymmetrical Digital Subscriber Line) Related Entries Web Links New/Updated Information Note: Many topics at this site are reduced versions of the text in "The Encyclopedia of Networking and Telecommunications." Search results will not be as extensive as a search of the book's CD-ROM. The telephone system in the United States is largely digital, even though most telephones are analog devices. The so-called "last mile" is the local loop of wire that stretches from most homes to the telephone company's central office (usually in the same neighborhood). This local loop is copper twisted-pair wire that has carried voice in a narrow band below 4000 Hz. DSL technologies expand the bandwidth usage of this cable. DSL technologies use line encoding to provide very high data transmission rates over the local loop. ADSL is one form of DSL technology. Copyright (c) 2001 Tom Sheldon and Big Sur Multimedia.
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