HDMI is known for the acronym of the English expression High Definition Multimedia Interface. It is a new connection used to transmit uncompressed data as an improved alternative to analog patterns, such as radio frequency, VGA, and so on.
The HDMI connector allows connection between various high-definition electronic devices, for example: television, computer, DVD, among others. With the use of HDMI, all necessary connections are made with just a single cable and connector.
HDMI allows the use of enhanced or high definition video, as well as digital audio on a single channel. The cable has a greater bandwidth by which more information is obtained to reach the screen and with a brighter and clearer image.
It is noteworthy that there are several known connectors under the acronym HDMI, the most used is 19 pins, but there are others such as 29 pins that allows to obtain high resolution videos. Today, the latest version is 1.4, launched in 2009 that incorporates an Ethernet channel to connect any device in the Internet system for online assistance, higher image quality and includes an additional audio channel for certain applications TV recording.
This technology is being developed jointly by the companies Hitachi, Panasonic, Philips, Silicon Image, Sony, Thomson and Toshiba. The main criticism that this new technology has suffered is that it has been designed making it impossible for users to create a copy of the audio-video content, through data encryption.
The biggest advantage of HDMI is that it establishes an audio and video connection digitally and is the reason why it has a better audio and video quality. Currently, the DVI connection is used in digital video which does not support high resolutions such as HDMI and, this makes video and audio connection compared to DVI that only makes video connection.