Cable modem facts for kids
A cable modem is a special device that helps you connect to the internet using the same cables that bring you cable television. Think of it as a translator. It takes the internet signals from your cable TV network and turns them into something your computer or Wi-Fi router can understand. This lets you browse websites, watch videos, and play online games.
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What is a Cable Modem?
A cable modem is a type of modem. The word "modem" stands for "modulator-demodulator." This means it can change (modulate) digital signals from your computer into signals that can travel over the cable lines. It can also change (demodulate) signals coming from the internet back into digital information your computer can use.
Most homes use cable modems to get high-speed internet access. They connect to the cable TV network that is already installed in many buildings.
How Does a Cable Modem Work?
Cable modems use specific "channels" on the cable TV network. These are different from the channels you watch TV on, but they use the same physical wires.
When you send information from your computer, the cable modem changes it into a special signal. This signal travels through the cable lines to your internet service provider (ISP). When information comes from the internet, the modem receives the signal and changes it back into data your computer can understand.
Cable modems usually connect to your computer or Wi-Fi router using an Ethernet cable or sometimes a USB cable.
More Than Just Internet
Many modern cable modems can do more than just provide internet. With Voice over IP (VoIP) technology, some cable modems can also provide telephone services. This means you can make phone calls over the internet using your cable connection.
In simple terms, a cable modem acts like a bridge. It connects your home network (your computers, phones, and other devices) to the larger internet network through the cable lines.
Images for kids
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ARRIS Touchstone CM820B DOCSIS 3.0 cable modem
See also
In Spanish: Cablemódem para niños
