Introduction to Information Technology · Unit 9
Operating System Management
Exam-focused notes for Operating System Management (Introduction to Information Technology, BIT101): what the TU syllabus asks and how it has actually been tested, with 3 solved past questions from this unit.
What this unit covers
- Process scheduling concepts
- Non-preemptive scheduling
- Preemptive scheduling
- Deadlock definition and reasons
- Physical and logical address concepts
Deadlock definition and reasons
What is Deadlock? What are the reasons for deadlock? [5]
A deadlock is a situation in which a set of processes are blocked permanently because each process in the set is waiting for a resource that is held by another process in the same set. As a result, none of the processes can proceed, and they remain in a wai...
Full solved answer →Physical and logical address concepts
Explain about Physical address and Logical address. [5]
A logical address is the address generated by the CPU during program execution. It is the address that a running program "sees" and uses to reference memory locations. Key characteristics: - Generated by the CPU - Also called virtual address - Does not dire...
Full solved answer →Process scheduling concepts
What is scheduling? Explain Non Pre.-emptive scheduling and Pre-emptive scheduling. [5]
Scheduling is the process by which the operating system decides the order in which processes are allocated CPU time. The CPU scheduler selects a process from the ready queue and allocates the CPU to it. The main goal of scheduling is to maximize CPU utiliza...
Full solved answer →Make Unit 9 stick
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