networkingPresentation

networkingPresentation - Extra Space You might think that a...

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Extra Space You might think that a television channel would take up quite a bit of electrical "space," or bandwidth , on a cable. In reality, each television signal is given a 6-megahertz (MHz, millions of cycles per second) channel on the cable. The coaxial cable used to carry cable television can carry hundreds of megahertz of signals -- all the channels you could want to watch and more. In a cable TV system, signals from the various channels are each given a 6-MHz slice of the cable's available bandwidth and then sent down the cable to your house. In some systems, coaxial cable is the only medium used for distributing signals. In other systems, fiber-optic cable goes from the cable company to different neighborhoods or areas. Then the fiber is terminated and the signals move onto coaxial cable for distribution to individual houses. Streams When a cable company offers Internet access over the cable, Internet information can use the same cables because the cable modem system puts downstream
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This note was uploaded on 12/09/2009 for the course CS 431,430,48 taught by Professor Scher,statica during the Spring '09 term at NJIT.

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networkingPresentation - Extra Space You might think that a...

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