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Get rid of any cookies to run most efficiently. IPs and Privacy: Understanding Your DSL ISPOne of the most common questions for people new to DSL is, do I need a DSL ISP, or internet service provider? Again, some, like Yahoo, will include one with your account. If you are located far from your DSL provider you may have trouble connecting at times or the speed may drop -- the closer to the provider location, the better your service. Find out below. Pros: If you live outside a big city, a small company may be your best bet for getting good service.
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So once you call them to get your information, you can use your yellow pages to make sure you haven't missed out on any new ones. Basically, there is very little maintenance that the satellite TV will need of you once it is installed and running. This is mainly due to the nature of the copper wire carrying the DSL signal. Most of the time, every telephone and/or fax machine line will be equipped with a DSL filter and only the cable connection will be left without it. Finding A Local DSL ProviderIf you do not live in an area that is considered a "dead zone", you may be able to find more than one local DSL provider. Now, pick up the phone and give them a call and find out if there are any other offers they have for cheap DSL internet.
DSL, or 'digital subscriber line', is that handy set of technologies that allows you to browse the internet at warp speed. This technology suddenly appeared in homes around the world during the 1990s. But where did it come from, and how exactly does it work? Let's find out.
Origin
Back in the 1980s, engineers were poking around for a way to get bits of information from one computer to another via telephone lines. They figured out a way to do this using already-installed telephone lines. Joseph Lechleider, an analyst at Bellcore, and John Cioffi, who founded the Amati engineering firm, came up with the mathematical analysis and circuits that make DSL possible.
Telephone companies initially weren't thrilled with DSL, because the technology gave customers the option of using their pre-existing phone line for internet service instead of having to pay for a second phone line. Prior to broadband, modems had to dial up to a service provider, so customers typically had two separate lines; one for the phone and one for the modem.
However, as more and more media-rich content became available on the internet phone companies joined the technology train. Today, many companies, like AT&T, market their own brand of DSL service. Eventually the telephone companies realized that DSL saved them money since it didn't require digging new trenches for additional phone wiring, as would be the case when installing fiber optic cables to provide the same broadband access.
How DSL Works
For more than one hundred years, telephone lines have consisted of a pair of copper wires running from a main trunk owned by the phone company to a consumer's house. Copper is great for being able to carry a wide range of frequencies. This range is also called its "bandwidth."
The frequency range of the human voice is from 300 to 3,400 Hz. The telephone companies liked limiting the bandwidth because it allowed them to bundle many wires together at a central location without having any distortion caused by overlapping frequencies.
That leaves a lot of unused bandwidth - more than a million HZ -- on the copper wire, and that's why engineers started looking at using it for DSL in the first place.
DSL also splits the digital signals being carried by the copper wire into upstream and downstream channels. Market studies showed that internet users download more content than they upload, or send. So DSL makes the downstream channel three to four times faster than the upstream channel.