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Cable

Almost everyone is familiar with cable TV. Just as that all-too-familiar coaxial cable can bring us more television channels than we know what to do with, that same cable is capable of bringing broadband Internet access into our home or place of business.

How Does a Cable Modem Work?

If you thought about buying a cable modem from your favorite computer store to plug into your existing cable line in the hopes of getting free Internet access, don't. Cable Internet services will require you to pay a fee for the services received. The signal coming down your cable TV line is actually made up of many separate signals, with each television channel receiving a 6-MHz portion of the available bandwidth. “Available” becomes a keyword here. Cable is a shared resource, meaning that there is a finite amount of bandwidth available that is split up among applications and users.


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