Operating System (OS)
The powerful text editor called PC-Write can be used by anybody by paying a small fee. Such programs are called

Mindware
Software
Shareware
None of these
Firmware

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

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

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