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From HDMI version 1.4, the Audio Return Channel (ARC) was introduced, which makes it possible to transmit an audio signal in the opposite direction to the picture signal.
The MEDION number, consisting of MD and a number, identifies precise product series and their specifications and can often be found on packaging or devices.
A protocol, which can secure the boot process by preventing the loading of drivers or OS loaders that are not signed with an acceptable digital signature.