Operating System (OS)
In which addressing mode the operand is given explicitly in the instruction?

immediate mode
index mode
absolute mode
None of these
indirect mode

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Operating System (OS)
Scheduling is

None of these
the same regard-less of the purpose of the system
not required in uniprocessor systems
allowing jobs to use the processor
unrelated to performance consideration

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Operating System (OS)
Operating system

None of these
links a program with the subroutines it references
All of these
provides a layered, user-friendly interface
enables the programmer to draw a flowchart

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Operating System (OS)
Which of the following statement is true.

All of these
Seek analysis is used for analysing control-unit busy problems.
The LRU algorithm pages out pages that have been used recently
None of these
Thrashing is a natural consequence of virtual memory systems.

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