OS IMP QB

 Unit-1 Essays

Define operating system explain the basic functions of an operating system 

Explain the different types of operating system with examples.

Explain the history and evolution of operating system

Unit-1 Shorts

What is resource abstraction in the context of operating system 

Write a short note on rtos and their applications

Discuss briefly about user modes and kernel modes


Unit-2 Essays

Explain process States with neat diagram

What is thread? components of thread and different types of threads.

Explain various preemptive and non preemptive scheduling algorithms with examples 

Unit-2 Shorts

What is a system call what are the different types of system calls 

Explain about process control block 

Explain about process hierarchy

Unit-3 Essays
What is a critical section what are the three requirements to satisfy a solution of critical section
Explain deadlock avoidance briefly with example
What is semaphore? Explain its advantages and disadvantages and implementation


Unit-3 shorts
What are the necessary and sufficient conditions for deadlock
Discuss about process synchronisation



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