A cable is two or more wires or ropes running side by side and bonded, twisted or braided together to form a single assembly. Electrically cables are used to carry electrical currents. An optical cable contains one or more optical fibers in a protective jacket that supports the fibers.
Cables, being the longest part of a system, act as efficient antennas, picking up or radiating electrical noise. A cable's ability to minimize unwanted noise and to accurately transfer the frequencies inherent in the audio spectrum - 20Hz-20Khz+ - impact on the performance of your system. Truly then, cables are a vital component in today's modern audio and visual systems and it is imperative that they are given the utmost consideration.
Electric cables are mainly meant for installation in buildings and industrial sites. For power transmission there are high voltage cable, power cables and HVDC. There are so many different kinds of cables and wires. These wires may not seem important, but they really can make a big difference.
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