HDMI (High-Definition Multimedia Interface) is a set of hardware and software standards designed to support the transmission of audio and video. Unlike older standards, which required separate cables for audio and video, HDMI can handle both though a single connection.
It's now the de fact standard for connecting external devices to TVs, linking external displays to computers (although that often requires an adaptor) and even adding smart TV functions to regular TVs through devices like the Google Chromecast, Apple TV and Amazon Fire TV Stick. Let's take a walk down HDMI Lane to see what makes it tick and how to make informed buying decisions.
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