USI stands for various terms. Discover the full forms, meanings, and possible interpretations of USI across different fields and industries.
It is a definite magnitude of a physical quantity. The identifier for a logical subsystem and the logical device within the subsystem. In mainframe computing, the address associated with a device on a given control unit. On ESCON or FICON interfaces, the unit address is the same as the device address. On OEMI interfaces, the unit address specifies a control unit and device pair on the interface. The address of a particular device, specified at the time a system is installed.
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