INT 60 - Tangram Arbiter - 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. Desc: Arbiter makes a PCIBM PC disk look like a slow disk over an SNA link to an IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. mainframe Range: INT 60h to INT 66h, selected by configuration parameter Notes: identified by string "@ARB_API" immediately following a short jump at the interrupt handler address