As VGA became the
accepted new standard, boards manufacturers first concentrated on building compatible
boards, then they turned their attention to expanding
on the capabilities of basic VGA.
The highest resolution supported by a VGA board is 640x480 in 16 colourss from a palette of
256. This is adequate for general work but
still higher resolution is
required for applications such
us DTP,
CAD and illustration. Even general applications working under Windows or OS/2 benefit from
resolutions above 640x480.
The need for these higher resolutions has resulted in the adoption of three additional standard
modes.
Ø 800
x 600 in 16 or 256 colourss
Ø 640
x 480 in 256 colourss
Ø 1024
x 768 in 16 or 256 colourss
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