INT 1F U - C&T "SuperState" 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. - SET ALARM STATUS AH = FCh BL = 01h AL = new alarm state (00h = disabled, 01h = enabled) SeeAlso: AH=FCh/BL=00h,AH=FCh/BL=03h