Dedicated MPEG decoders come with different capabilities. They often use the video feature connector on the regular video card, to supply video information directly to the card without tying up the system bus with an enormous amount of video data. Video encoding and decoding software and hardware is still evolving today for DVD and is likely to improve dramatically in coming years. It is possible to get video cards that include a TV tuner built into them. With accompanying software, this allows you to view television in a window on your desktop.
TV tuners are also available as add-in cards.
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