Question: 3. Explain how does OS play a role as an extended machine (abstraction) with an example? (4 points) 4. Explain the different levels of abstraction

3. Explain how does OS play a role as an extended

3. Explain how does OS play a role as an extended machine (abstraction) with an example? (4 points) 4. Explain the different levels of abstraction provided by OS for programmers to perform read-write operations on disk blocks? ( 2 points) 5. Explain how does OS play a role as a resource manager with an example? (4 points)

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