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Input Output Systems Questions

MCQ
21.
The _________ determines the cause of the interrupt, performs the necessary processing and executes a return from the interrupt instruction to return the CPU to the execution state prior to the interrupt.
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MCQ
22.
In general the two interrupt request lines are ____________
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MCQ
23.
The _________ are reserved for events such as unrecoverable memory errors.
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MCQ
24.
The ________ can be turned off by the CPU before the execution of critical instruction sequences that must not be interrupted.
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MCQ
25.
The __________ is used by device controllers to request service.
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MCQ
26.
The interrupt vector contains ____________
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MCQ
27.
Division by zero, accessing a protected or non existent memory address, or attempting to execute a privileged instruction from user mode are all categorized as ________
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MCQ
28.
For large data transfers, _________ is used.
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MCQ
29.
A character stream device transfers ____________
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MCQ
30.
A block device transfers ____________
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