MID 1 IMPORTANT QUESTIONS
UNIT-I What is an operating system? Describe the Operating System functions Explain the Time- shared Operating System Explain different categories of system calls with suitable example? With a neat sketch, describe the services that an operating system provides to users, processes and other systems. What is the purpose of interrupts? What are the differences between a trap and an interrupt? Can traps be generated by a user program? Explain the purpose with an example. Explain briefly Layered Operating system structure with neat sketch. UNIT-II What is a process? Explain about various fields of Process Control Block. Define a Thread? Give the benefits of multithreading. What resources are used when a thread is created? How do they differ from those used when a process is created? Distinguish between preemptive and non-preemptive scheduling. Explain each type with an example. What is IPC? Explain in detail the inter process commu...