But in the not-so-distant past, the tech world relied on wires, not just to power things but to connect them to output devices -- wires like the optical audio cable. Optical audio uses fiber-optic ...

The audio track is encoded as a translucent ... with adjustable positions for an idler pulley and the optical reader unit, an electronics box on one end for the electronic components, and another ...

In the home theater space most people would tell you the age of optical audio, known officially as TOSLINK, is over. While at one time they were the standard for surround sound systems ...