lecture23_inf201_fall2010

lecture23_inf201_fall2010 - INF201 Conducted and Wireless...

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Networking Media: Conducted and Wireless INF201 Introduction to Information Technologies INF201 Department of Informatics University at Albany – SUNY Adapted from Choi, Spring 2009
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Introduction INF201 The world of computer networks and data communications would not exist if there were no medium by which to transfer data. The two major categories of media include: Conducted media Wireless media
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Twisted Pair Wire INF201 Two or more pairs of single conductor wires that have been twisted around each other. Twisted pair wire is classified by category . Twisting the wires helps to eliminate electromagnetic interference between the two wires. A video clip
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INF201
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INF201
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INF201 A single wire wrapped in a foam insulation surrounded by a braided metal shield, then covered in a plastic jacket. Cable can be thick or thin. Baseband coaxial technology uses digital signaling in which the cable carries only one channel of digital data. Broadband coaxial technology transmits analog signals and is capable of supporting multiple channels of data. A video clip Coaxial Cable
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INF201
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INF201
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Fiber Optic Cable A thin glass cable approximately a little thicker than a human hair surrounded by a plastic coating and packaged into an insulated cable. A photo diode or laser generates pulses of
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This document was uploaded on 02/09/2011.

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lecture23_inf201_fall2010 - INF201 Conducted and Wireless...

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