Dear students here we provide notes for Anna university 4TH sem Subject CS OPERATING SYSTEM notes pdf. you can download the OS notes as per the. Class lecture notes for second Year,fourth semester Operating Systems (Subject Code: CS) is available here in PDF formats for you to. Why is the Operating System viewed as a resource allocator & control program? 3. What is ii) Write short notes on co-operating process and schedulers. (8).

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What is independent process?

A hard disk having cylinders, numbered from 0 to Where is notds Menu? Give a detailed description about deadlocks and its characterization. What is the use of boot block?

Write in detail about File-System Implementation. What do you mean by best fit?

Explain the various types of computer systems. Define entry section and exit section. Define request edge and assignment edge. What are the major problems to implement demand paging?


cs operating system question paper pdf

What are the allocation methods of a disk space? How many page faults would occur for the following replacement algorithms, assuming frame size is.

sgstem What are files and explain the access methods for files? Differentiate tightly coupled systems and loosely coupled systems. What are the requirements that a solution to the critical section problem must satisfy? What are the functions of virtual file system VFS? What is the use of inter process communication? List the various file attributes.

Anna University – Engineering Chemistry 1 – Januar Digital Logic Circuits – Circuit using Boolean exp What ysstem a process? What is the main function of the memory-management unit? What is the information associated with an open file?

Nores about the methods used to prevent deadlocks 7. What is logical address space and physical address space? Write about critical regions and monitors.

CS2254 Operating Systems Important Questions Nov Dec 2013 – CS2254 Part B Important Questions

Explain the various disk scheduling techniques 3. Explain about contiguous memory allocation. Define logical address and physical address.


What is process control block? The status of the queue is as follows 86, ,,, What is the total distance in cylinders that the disk arm moves to satisfy the entire pending request for each of the following sytsem algorithms?

CS Operating Systems: Notes

What is meant by operatijg switch? Mathematics 1 – January and May Question Anna University—Chemistry 1—January Question Define rotational latency and disk bandwidth. Explain in detail about swapping and thrashing.