MDPA, CGA, EGA, or VGA Adapter Boards
SCREEN 0: Text mode only
  - Either 40 x 25, 40 x 43, 40 x 50, 80 x 25, 80 x 43, or 80 x 50 text format
    with 8 x 8 character box size (8 x 14, 9 x 14, or 9 x 16 with EGA or VGA)
  - 16 colors assigned to 2 attributes
  - 16 colors assigned to any of 16 attributes (with CGA or EGA)
  - 64 colors assigned to any of 16 attributes (with EGA or VGA)