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An HDMI port is a digital interface found on computers and other devices that transmits high-quality video and audio signals over a single cable to a compatible display, like a TV or monitor. It replaced older analog connections, providing uncompressed digital signals for a clearer picture and sound without the interference of analog. The port type varies by device, with the standard Type A being the most common for computers, though mini (Type C) and micro (Type D) versions exist for smaller devices.

All-Digital: HDMI uses a digital signal, which is more robust and less prone to noise and interference compared to older analog technologies.

Single Cable: A single HDMI cable can carry both high-definition video and multi-channel digital audio, simplifying connections to displays with built-in speakers.

Standardization: It's a standard for transferring data, defined by the CEA-861 standard and updated in various versions (1.0 through 2.1) to support higher resolutions, frame rates, and advanced features like HDR.

Location: On a computer, HDMI ports are typically found on the back of the tower, either on the motherboard or the video card.

Different Types: While Type A is standard, other connector types like Mini (Type C) and Micro (Type D) are used on laptops and mobile devices, respectively.