The port is what we call HDMI, that is, High- Definition Multimedia Interface in full. The HDMI is a computer port that can be used to communicate video and audio data from a source with HDMI to another.
That is, it is the transfer of video or audio data in its uncompressed state from an HDMI amenable device to other compatible devices like televisions, computer monitors, display controllers, video projector, digital audio device, and so on.
HDMI is one of the most used HD signals in the world today for transferring high-definition video and audio files using just a single cable.
There are several versions of the technology today, and many other versions are still in the process of creation and deployment. The newer versions come with improved audio/video capacity, resolution, color spaces, ethernet connection, CEC, and 3D. However, the principles remain the same as they all still use cables and connectors.