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IBM PROTOTYPE CARD,XGA or XGA-2 ?

yjfy

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IBM PROTOTYPE CARD,XGA or XGA-2 ?
IBM_XGA_ES.jpg


IBM_XGA_ES_1.jpg
 
Last edited:
A matrix of holes does not always indicate a prototype card.
IBM sometimes put them on production cards if there was spare real estate.
An example is the IBM Game Control Adapter, pictured [here].
 
Different places:
1.FCC ID
2.PCB#
3.Signet
4.Fly line useless
5.Handwritten
6.Sticker

A matrix of holes does not always indicate a prototype card.
IBM sometimes put them on production cards if there was spare real estate.
An example is the IBM Game Control Adapter, pictured [here].
 
Is it right? Because could not find the iSA interface of the XGA images on the Internet.
Can only find Radius MultiView XGA in http://www.os2museum.com/wp/?p=1867
P7159266.jpg


And said:
XGA Clones
For the XGA, IBM chose a novel strategy: Instead of making the hardware specifications secret, the register interface was fully documented; in addition, IBM licensed the XGA chip design to SGS-Thomson (inmos) and Intel. Worth of note is that Radius manufactured ISA-based XGA-2 adapters built around chips from inmos (as usual, IBM didn’t bother with non-MCA adapters).
 
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