The maximum screen resolutions of the different video standards is summarized below, along with their color and graphics features:
HGC:
maximum dot resolution: 720x350
maximum text display: 80 columns x 25 lines
colors:
monochrome green or amber
C G A :
dot resolution: 640 x 200
maximum text display: 80 columns x 25 lines
colors:
2 of 16 colors (640 x 200)
4 of 16 colors (320 x 200)
E G A :
dot resolution: 640x350
maximum text display: 80 columns x43 lines
colors:
16 of 64 colors
V G A :
dot resolution: 720x400 (text only) 640x480 (text and graphics)
maximum text display: 80 columns x50 lines
colors:
16 of 262, 144
256 of 262, 144 (320x200 res)
Video Monitor Systems |