What is a Cable Modem?

If you are a cable subscriber, then there is a good chance that you have heard of the term “Cable Modem.”

A Cable Modem is an electronic device that connects your home or business internet to the company’s network. It has two main functions: to provide high-speed access to information on the internet, and act as a bridge between your computer and the company’s network. This means that if you do not have a modem connected to your computer with an Ethernet cable, then you will need either wireless or telephone service for Internet access.

Example of a Cable Modem

ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem with 2.5 Gbps Ethernet Port

ARRIS Surfboard S33 DOCSIS 3.1 Multi-Gigabit Cable Modem with 2.5 Gbps Ethernet Port
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Outstanding for speed, style and performance, the ARRIS SURFboard S33 is the perfect modem for today’s high-speed internet users. Boasting a DOCSIS 3.1 cable modem approved for speeds up to 2.5 Gbps in 32 downstream x 8 upstream bonded channels, powerful 2nd Ethernet port offering full 1 Gbps of bandwidth with two total downstream × 2 upstream OFDM DOCSIS 3 1 channels, this device sits comfortably at the pinnacle of top tier home internet capability and will create an outstanding networking experience inside your home or office – connecting to any existing Wi-Fi router will provide you with super-fast Wi-Fi speeds for all your wireless devices.

With a stylish and compact design, the ARRIS SURFboard S33 DOCSIS is an excellent choice for any home or office looking to experience the very best in internet performance.

What is the difference between a modem and a cable modem?

A modem, or modulator demodulator, is an electronic device that accepts a signal from the internet service provider and transforms it into a lower frequency signal (typically 25-30 Hz) which is then in turn transmitted to computers.

The word “modem” is short for “modulator-demodulator.” A modem’s primary function is to convert digital computer data signals into analog signals that are more easily transferred over telephone lines. Modems can also perform converting on the other end of transfers too, taking received information and recreating it as digital data files suitable for processing by specific applications. A modem allows your computer to communicate with other computers on the Internet.

Rather than acting as a middleman for transmitting data between your computer and the internet, it uses wires to directly connect you with the company’s network. A cable modem can be used for both “downloading” and “uploading.” Uploading is when one user sends information (such as writing this blog post) another user. Downloading is when one user receives information (such as reading this blog post) from another.

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