How does cable internet work?

Answer 1

Suppose you want to connect your computer to an ISP using an ordinary phone line. The computer at your end needs a modem to modulate its digital signals (add them on top of an analog telephone signal) so they can travel down the phone line just like the sound of your voice. Once the signals have reached the other end, they have to pass through a second modem, which demodulates them (separates them out from the telephone signal and turns them back into digital form) so the ISP computer can understand them. When the ISP computer replies, it sends its signals through a modulator back down the line to you. Then a demodulator at your end turns the signals back into digital form that your computer can understand.

A box that we call a modem thus contains two different kinds of translators. There's a modulator (for transmitting digital signals out down the phone line in analog form) and a demodulator (for receiving analog signals from the phone line and turning them back into digital form)-and that's why it's called a modem.

Modulation is simply a fancy name for transmitting information by changing the shape of a waveform. If you send information by making the peaks of a wave bigger or smaller, that's called amplitude modulation or AM (because the amplitude is the size of the wave peaks); if you send information by changing how often the peaks travel, that's frequency modulation or FM (because the frequency is the number of peaks that travel per second). You may have heard the terms AM and FM before, because they describe how radio signals travel.

Answer 2

hi. you must have cable inside the house. you need to contact your cable company for rates / connection speed. a technician will come and install a cable modem which is the link between cable and computer. it works fine for me.

Answer 3

How should i know......? when ever your are on the computer its running YOUR computer.... and if ur saying how does a cable modem work and i am on a computer.... WELL THIS ISNT MY COMPUTER DO HOW SHOULD I KNOW?! its mr j's.... my computer teacher How should i know......? when ever your are on the computer its running YOUR computer.... and if ur saying how does a cable modem work and i am on a computer.... WELL THIS ISNT MY COMPUTER DO HOW SHOULD I KNOW?! its mr j's.... my computer teacher

Answer 4

Cable internet works by transmitting signals and information via the same coaxial cables that Cable Television uses. The transmission is sent through a designated television channel that is managed by the cable provider. The signal is received by a cable modem box, which is installed into the user's home.

Answer 5

With a cable internet connection you will get a modem box that connects to your coax wire. From the box an ethernet cable will go to your computer to provide internet access, usually with no software required on the computer. Some cable modems also offer wifi (802.11) access.

Answer 6

One of the most common ways people connect to the internet today is through cable modems. A cable modem is a device that has the ability to deliver high speed internet connections through a cable.

In fact, in most places, the cable that is used to transmit this internet access is that same cable used to transmit a household�s cable television. One can obtain such an internet service by paying for a subscription to a cable company that supplies it.

Today, most cable modems closely resemble the design of DSL modems. The cable internet and television transmission, known as a CATV signal, needs to reach this cable modem to supply that household with internet. This is accomplished through a coax cable.

The coax cable that is used will have a high level of bandwidth. This will include space for upstream internet service used for uploading and downstream internet service used for downloading. It will also include enough space to transmit the cable television feed simultaneously with internet service.

Usually, a cable modem does not need to be bought separately from a cable internet subscription. It is usually included as part of the service and will be sent to a customer free of charge after he or she has purchased a subscription. Some companies, however, require a customer to return the machine to the internet service provider if that customer chooses to end their contract.

Usually, cable modems exist as pre-configured external modems. However, in other cases, the modem may come as part of a set top box. This is the unit that is used the descramble cable signals. Such signals are scrambled to prevent non-subscribers from stealing the service.

Certain computers can also be purchased with an internal cable modem. However, these usually have to be specially purchased from a computer retailer. Such internal modems may be compatible with a cable internet provider�s services. However, it is a good idea to inquire about this beforehand.

There are certain advantages to choosing one�s own cable modem. Different cable modems on the market include different features a customer may find appealing. One possibility is a cable modem that comes with a built-in router that allows an internet connection to be shared between multiple computers in a home or office.

Answer 7

A wireless modem is connected to the Internet by using a router. These connections are made by using a satellite. Modems pick up the signal from the router and transmit it to the satellite.

Answer 8

Cable routers work by taking the incoming data, sent through the cable wires, and the transforming it into a hotspot so that devices can hook up to it.