VMODE.EXE is a menu-guided program used to set a video mode for your board. It is possible to change the screen display mode into one of the numerous high-resolution modes with just a few keyboard inputs. The board additionally supports the somewhat outdated MDA, CGA and HGC video modes at a hardware level.
Some programs - mostly games - can only be run in CGA or HGC modes and often access the hardware directly. The processor on your board emulates the necessary hardware to make this possible. Without this emulation the screen display would be faulty and could cause the system to crash.
VMODE can be invoked from the DOS command prompt or from a menu as described in the following sections.
