INT 15 - SYSTEM - POINTING DEVICE 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. INTERFACE (PSIBM PS/2, any model) - SET SAMPLING RATE
	AX = C202h
	BH = sampling rate
	    00h 10/second
	    01h 20/second
	    02h 40/second
	    03h 60/second
	    04h 80/second
	    05h 100/second
	    06h 200/second
Return: CF set on error
	    AH = status (see #00522)
SeeAlso: INT 33/AX=001Ch