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Juice0904 wrote:

 

Maybe there is more to it than I know of, but for video quality, it would make more sense to me to have DVI as the standard output for laptops and the standard PC input for HDTVs.  I thought digital video signals were of better quality than analog video signals. 

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Strictly from a signals perspective - yes, DVI would have been the preferred choice.  However, in many cases where people hook up something to the video port of their laptops, the purpose is for showing a presentation on a projector, and many of these projectors are still VGA based.  Therefore laptop manufacturers have to cater to the lowest common denominator.

If anything, Displayport will likely replace both DVI and VGA, but that won't happen for awhile yet.