What is a key characteristic of fiber optic cables?

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Fiber optic cables are distinguished by their ability to transmit data using light signals. This characteristic is fundamental to their function and is what enables them to achieve high data rates over long distances with minimal signal loss. Unlike traditional electrical cables, which utilize copper wires to send data through electrical signals, fiber optic cables use strands of glass or plastic that carry light crafted into pulses. These light signals can transmit information rapidly and with greater bandwidth, making them superior in many networking applications.

The use of light signals not only enhances data transmission speeds but also significantly reduces interference from electromagnetic sources, which is often a limitation in copper cables. This results in a more efficient and reliable communication medium. Therefore, understanding that fiber optic technology revolves around light transmission helps clarify why this is the key characteristic that sets it apart from other types of cabling.