opto1k@jetson.uh.edu (03/17/91)
I just read in the book "Programmer's Guide to EGA/VGA", 2nd. edition, that a company named Sierra Semiconductor makes an 8-bit per color RAMDAC that is software AND hardware(pin-for-pin) compatible with the regular 6-bit per color ones. I would like to know: 1) If I can buy a SuperVGA card using the 8-bit RAMDAC, and/or 2) If such a card is not available, which SuperVGA cards allow me to swap RAMDAC (i.e., RAMDAC in a socket) and are compatible with Sierra's RAMDAC? 3) the phone numbers of Sierra Semiconductor and of any one making compatible 8-bit-per-color VGA RAMDACs. Why do I need such a beast? I am not interested in colors but gray levels, more the better. However, some of the cards that have 8-bit-per color cost an arm and a leg, AND/OR they are not compatible with EGA/VGA -:(. Any info will be helpful. Please respond by e-mail. Thank you very much in advance. ___ Tong Ho University of Houston, College of Optometry E-Mail: opto1k@jetson.uh.edu Phone: 713/749-1309