Cable Modems vs. Digital Subscriber Lines Bob Fager Econ 235?The mesh has grabbed on to the humanity and it isnt letting go. Nearly 36 million U.S. homes shortly have PCs and everyone is dying to jump on the information superhighway. The Internet, which started as a group of government agencies and universities, has grown to include nigh anyone, from home pulmonary tuberculosisrs to large companies and everyone in between. It makes sense so that providing Internet service is big business. The service which used to be predominate by groups of nerdy computer whizzes using equipment in someones basement is flat being provided by many send for companies, large on-line services and may soon be available from you local cable company.
Computer users be an yearning group. They are starving for a faster way of get in touching to the net. Until now home users have had to suffer with the slow connections available with parallel modems or spend a relatively large aggregate on having a digital line, such(prenominal) as ISDN, installed and then continue paying a lot for the monthly charges associated with such lines.
Standard analog modems have always been hindered by the bandwidth they are appropriateed to use. Standard voice grade phone lines use the relative frequency spectrum between 0khz and 4khz to stockpile their signal. 33.6 kbps modems packed nearly 11 bits of data per hertz, a remarkable feat, which is very near the theoretical limit. To allow faster connections modems must use a wider bandwidth.
?Two revolutionary competing technologies are now being developed which use this wideband idea to give computer users the speed they crave. Telephone companies are working on developing a way to use the standard twisted pair copper wires that now connect nearly every home in America to transmit data at high speeds. These technologies, collectively called xDSL, come in two main flavors. ADSL, which is an acronym for asymmetric digital subscriber line, is the most common. This name was coined by Bellcore in 1989. The other main pillow slip of digital subscriber line...
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