Operating System (OS)
The term "operating system" means

the way a floppy disk drive operates
conversion of high level language into machine code
a set of programs which controls computer working
the way a computer operator works
None of these

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Operating System (OS)
The necessary conditions needed before deadlock can occur?

Mutual Exclusion, Hold and wait, Preemption, No Circular Wait
No Mutual Exclusion, Hold and wait, Preemption, Circular Wait
Mutual Exclusion, No Hold and wait, Preemption, Circular Wait
Mutual Exclusion, Hold and wait, No Preemption, Circular Wait

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