The Free On-line Dictionary of Computing (18 March 2015):
(Or "graphics adapter", "graphics card",
"video adaptor", etc.) A circuit board fitted to a computer,
especially an IBM PC, containing the necessary video
memory and other electronics to provide a bitmap display.
Adaptors vary in the resolution (number of pixels) and
number of colours they can display, and in the refresh rate
they support. These parameters are also limited by the
monitor to which the adaptor is connected. A number of such
display standards, e.g. SVGA, have become common and
different software requires or supports different sets.