Video BIOS You are aware that The system BIOS (Basic Input Output System) provides a set of functions that are used by software programs to access the system hardware. Likewise, the video BIOS provides a set of video-related functions that are used by programs to access the video hardware. The video BIOS interfaces software to the video chipset in the same way that the system BIOS does for the system chipset. It should be kept in mind that the BIOS code and the software drivers in the Video BIOS can differ for different cards that use the same video chipset. As there is an increase in the variety of cards available in the market and you need different code to support the BIOSes of different cards, software programming has become difficult. VESA (Video Electronics Standards Association, an international standards body for computer graphics founded in 1989 by NEC Home Electronics and eight other video display adapter manufacturers) has introduced a standard for high-resolution BIOS code called the VESA BIOS Extensions (VBE). You can apply these by means of hardware code or software drivers so as to have more standardized control over the video.