A cable modem is a physical device that separates the computer data from the cable television video signal. Group of answer choices True False
The correct answer and explanation is:
The correct answer is True.
A cable modem is a device that facilitates the transmission of data over a cable television infrastructure. It acts as a bridge between the computer or other devices and the cable television system, specifically designed to separate the data signals from the television video signals.
The cable television network traditionally carries video signals for broadcasting, but with the advent of broadband internet, this network was also utilized to carry data signals. The cable modem serves as the interface that enables high-speed internet access by modulating and demodulating the data signals that are transmitted over the cable. This allows internet data to be sent and received through the same coaxial cable that also carries television signals, while maintaining the separation between these two types of signals.
The physical device works by converting the internet data into a format suitable for transmission over the cable network. When a computer or device sends data to the internet, the cable modem modulates the data into a signal that can travel over the coaxial cable. Likewise, when data is received from the internet, the modem demodulates the signal back into a format that the computer or device can understand.
It is important to note that while the modem separates the data and video signals, it does not provide a direct interface for cable television viewing. Cable television viewing and internet data transmission share the same physical medium, but the signals are processed separately to ensure that both services can operate concurrently without interference.
The technology behind cable modems has evolved over the years, enabling faster internet speeds, and allowing for the efficient use of the cable television infrastructure for both internet and television services.