Why not two ADC ports?

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  • Reply 21 of 26
    ryaxnbryaxnb Posts: 583member
    Quote:

    Originally posted by alfrank

    quote of ryanxb:

    "5. Back on subject, perhaps it's because of the fact that they use stock vid-cards AFAIK. Apple probaby doesn't have much influence over NVIDIA or ATI.

    "



    All Apple Display Cards that have an ADC port are OEM cards especially manufactured for Apple.

    No other PC manufacturer uses ADC ports.

    For ADC you need an extra power supply to the cards (23 V afaik) which is provided by a small additional edge connector on the cards near their back end.

    This configuration is not stock at all.



    One problem could be the lack of ADC->Analog-VGA adaptors.




    Oh. However, *new (to be dead, probably) idea*! About the ADC-VGA adaptors: If Apple put in official DVI, it has VGA too. So Apple could make a $13 converter.
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  • Reply 22 of 26
    smirclesmircle Posts: 1,035member
    Quote:

    Originally posted by ryaxnb



    3. While were talking Apple closed stuff, what about their special DB-15 display connector? Perhaps they used it for PnP (PC PnP wasn't around in '87.)




    This connector was one very Apple-like and cool invention. It goes back to the Mac II, so it is in fact much older than Plug-and-Pray on the PC.

    This connector offered the possibility for the display to tell the computer about it's native resolution (at a time where single-resolution CRTs were common). As you could kill the display if you tried to feed it the wrong resolution, it was very convenient to never have to worry about setting res and phase and stuff like that.
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  • Reply 23 of 26
    bartobarto Posts: 2,246member
    There is a second ADC connector on the MLB of the Mirror Drive Door G4s, and I assume there is one in the G5 too.



    There could be any number of reasons why Apple doesn't make graphics cards that use it.



    Barto
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  • Reply 24 of 26
    Quote:

    Originally posted by Barto

    There is a second ADC connector on the MLB of the Mirror Drive Door



    what's an MLB?
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  • Reply 25 of 26
    ryaxnbryaxnb Posts: 583member
    Quote:

    Originally posted by Smircle

    This connector was one very Apple-like and cool invention. It goes back to the Mac II, so it is in fact much older than Plug-and-Pray on the PC.

    This connector offered the possibility for the display to tell the computer about it's native resolution (at a time where single-resolution CRTs were common). As you could kill the display if you tried to feed it the wrong resolution, it was very convenient to never have to worry about setting res and phase and stuff like that.




    Ah. I figured that might be the case, but not having a good Mac until recently, I didn't know.
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  • Reply 26 of 26
    bartobarto Posts: 2,246member
    Quote:

    Originally posted by johnjosephbachir

    what's an MLB?



    The big, flat, square coloured plasticy board on the inside of a computer. It's the thing that all the cool computery lookin' stuff like chips and cables and cards and stuff is connected too.



    Barto
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