INT 7A - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. PC3270 EMUL PROG v3 - INTERNAL API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running.  Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. TERMINATION
	AX = FF02h
Return: CX = 1200h
SeeAlso: AX=FF01h