Cables refer to wires or conductors that transmit information or power from one place to another. They can be made of various materials such as copper, aluminum, or fiber optic, and can be used for a variety of purposes, including telecommunications, computer networking, and electrical power transmission. There are different types of cables, including twisted pair, coaxial, and digital optical cables, each suitable for different applications. In summary, cables are essential components in modern technology, facilitating communication and power distribution.