INT 15 - Advanced Power Management v1.0+ - CONNECT REAL-MODE INTERFACE AX = 5301h BX = device ID of system 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. (0000h) Return: CF clear if successful CF set on error AH = error code (02h,05h,07h,09h) (see #00473) Note: on connection, an APM v1.1 or v1.2 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. switches to APM v1.0 compatibility mode until it is informed that the user supports a newer version of APM (see AX=530Eh) SeeAlso: AX=5302h,AX=5303h,AX=5304h