Operating System (OS)
Seeks analysis

is used for analyzing control-unit busy problems
is used for analyzing device busy problems
is used for analyzing paging problems
is only shown on real-time displays
None of these

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Operating System (OS)
The CPU, after receiving an interrupt from an I/O device

None of these
halts for a predetermined time
branches off to the interrupt service routine immediately
hands over control of address bus and data bus to the interrupting device
branches off to the interrupt service routine after completion of the current instruction

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