• Attempt any five questions.
• All questions carry equal marks.
Explain the evolution of operating system in detail.
List the functions of OS. How operating system perform management task in a system?
What is a File? Write different file attributes and operations?
For a file system with 512-byte blocks, explain logical-to-physical address mapping for contiguous, linked and indexed allocation.
How process is differing from program? Describe process transition diagram in detail.
Given a segment table, find physical addresses for logical addresses: 0430, 110, 2500, 3400.
What are the five major activities of an operating system in regards to memory management?
What is busy waiting? What other kinds of waiting exist? Can busy waiting be avoided?
Explain concurrency controls. Differences between real and virtual concurrency?
Explain the concept of buffering and spooling.
Why Semaphore is important in OS? Explain Binary and counting semaphores with suitable example.
What are the advantages and disadvantages of making the computer network transparent to the user?
Discuss the design issues of distributed operating system.
List three possible types of failures in a distributed system.
Write short notes on (any two): a) Synchronization b) Demand paging c) System calls d) Kernel architecture in Unix.
