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Maybe not cheap, exactly, but certainly much less expensive than telecommunications technology would be if the fiber optic cable was not so widely, and reliably, used.
Fiber optic cable is a very, very long strand, or tube, of optically pure glass that sends electronic signals from one remote location to another. The signal, or transmission, is [...]

S video cable is the short name for separate video cable, a specially designed cable that creates very sharp, clear images on a television screen. A computer monitor is designed differently than a television so it requires a different technology to present the best quality picture.
S video cable is also known as Y/C video cable. [...]

Even though component video cables and S video cables both split elements of the on-screen picture (output), they aren’t exactly the same. The component video cable technology produces much greater clarity, providing a much clearer and brighter image on screen, than the S video technology, because it uses three elements of signal data while the [...]

High signal integrity, which is imperative when connecting two or more computers together or connecting one computer to the internet, is best achieved by using category 5 cable, often shortened to cat 5 cable.
Cat 5 cable consists of four pairs of cable where each pair is twisted together three times for each inch of cable. [...]