CALL xxxxh:xxxxh - Intel System Management Bus BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. InstallCheck: see INT 15/AX=53B0h/BH=01h,INT 15/AX=53B0h/BH=02h SeeAlso: INT 15/AX=53B0h/BH=01h,INT 15/AX=53B0h/BH=05h