Before HDMI become common, a source had to convert the signal from digital to analog to transfer the digital video signal from a source to a TV https://www.cmple.com/high-speed-hdmi-cables. Since such this cable popular, people can even get it online on https://www.cmple.com/high-speed-hdmi-cables. An HDMI output can transfer a digital video source signal digitally, without conversion to analogue.
The various variations of HDMI wires are able to access the functions, not all residence theatre parts touted as being certified with the producer could pick exactly what functions from their selected HDMI version they want to incorporate into their products. Of course, you can take a close look at the features of cable product available on the market to ensure that you buy the one that meets both your need and desire. In general, HDMI cables can be used to transfer data from one to other devices, mobile phone and LED TV for example.