ok, take a VHS tape for example, the strength of the signal stored on the tape determines picture brightness, is this how the mV values on the RAMDAC's color table are stored and read? i know that the brightness of the image on the monitor depends on the signal strength recieved but i'm talking about the actual RAMDAC's color tables and whether those mV values are stored analogly or in binary as a number, because if they were stored analogly that would mean that as time went on the mV values stored on the chip would weaken and cause it to produce a dimmer picture.