what exactly are cable-modems and how are they used? have you ever wondered? do you plan to purchase one because you are going to get high-speed internet access? if you’ve only heard about cable-modems recently, then here are facts that you should know about these devices.

cable-modems are devices that connect a cable connection to a computer for the purpose of delivering high-speed internet access service. information from the internet passes through the cable wire gets transformed by a cable-modem, and then moves on to a computer. to get into more detail, a cable connection is made up of a coaxial cable. a coax cable, for short, has the ability to transports a large amount of data. thus, it can be used to transport not only cable television but internet data as well. the role of the cable modem is to distinguish between the cable signal and the internet signal. it then takes the internet signal and transforms it to a digital signal. a computer only understands digital signals.

cable modems are available online, in computer stores, or you can purchase one from your cable provider. if you read the classified ads, you might notice there are used cable modems for sale too – not recommended though. a cable modem is a fairly affordable device. you won’t have to shell out a lot of money to get one. but if you want to scout around for a good deal then think about going online to research on prices.

if you’re concerned about the quality of a cable modem, you can read product reviews online. product reviews are usually paid reviews, however. a more reliable source to get an idea of quality is to read reviews from consumer magazines. forums are also a good source of information. now that you know about cable modems, then it’s probably time you go ahead and purchase one.