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(HDMI Consumer Electronics Control) A control function that lets one A/V component control another if they are connected via HDMI cables. For example, inserting a disc into the DVD player would turn on the TV automatically or the A/V receiver, if part of the system. Using proprietary brand names, HDMI CEC initially worked only when components were from the same vendor. Increasingly, HDMI CEC works across vendors' products.

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HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transferring uncompressed video data and compressed/uncompressed digital audio data from an HDMI-compliant device ("the source device") to a compatible digital audio device, computer monitor, video projector, or digital television.[1] HDMI is a digital replacement for existing analog video standards. http://en.wikipedia.org/wiki/HDMI