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Written by:

Anthony D


Date added:

March 8, 2014








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3 / 833


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A few areas of these networking advances will be discussed. Telephone networks have been so far the primary bearer of data and voice communications. In 1984 fully digital, circuit-switched telephone systems, known as Integrated Services Digital Network (ISDN) for voice and non-voice data communications were introduced...
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The following year BellCore began working on the standard for the Synchronous Optical Network (SONET). In the late 1980?¦s Local Area Networks (LANs) emerge as an effective way to transfer data between a group of local computers, and telephone companies replaces all its analog multiplexing with digital multiplexing...
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