VGA


Short for Video Graphics Array, VGA is a popular display standard developed by IBM and introduced in 1987, VGA provides 640 x 480 resolution color display screens with a refresh rate of 60Hz and 16 colors displayed at a time. If the resolution is lowered to 320 x 200, 256 colors can be displayed. VGA capability is built into plug-in video cards, VGA chips, and monitors that can work with the VGA cards. Today, VGA has been replaced by SVGA.

Below is an illustration of the 15-Pin VGA connector, its pin assignments, and size dimensions with a chart describing what each of the pins are for.

            

PINFUNCTION
1Red Video
2Green Video
3Blue Video
4Monitor ID 2
5TTL Ground
(monitor self-test)
6Red Analog Ground
7Green Analog Ground
8Blue Analog Ground
9Key (Plugged Hole)
10Sync Ground
11Monitor ID 0
12Monitor ID 1
13Horizontal Sync
14Vertical Sync
15Monitor ID 3

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