Computing (FOLDOC) dictionary
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this is built using VRAM
chips. There is normally a simple
correspondence between groups of bits
in video memory and
the dots or "pixels
" on the screen, such that writing to a
given group of bits will alter the appearance of a single dot.
If each pixel corresponds to eight bits then it can have any
of 256 colours (or shades of grey on a monochrome display).
The video display electronics is responsible for reading the
data from video memory and converting it into the necessary
signals to drive the display. Often this includes a colourpalette
which converts pixel values into RGB