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What is critical section problem?
Consider a system consists of 'n' processes. Every process has segment of code called a critical section, in which the process might be changing common variables, updating a table, writing a file. When one process is implementing in its critical section, no other process can allowed implementing in its critical section.
What are the objectives for a file management system? To meet the data management wants and requirements of the user, which embrace storage of data and the ability to
What is a Relocatable program? The Relocatable programs can be loaded almost anywhere in memory.
FIXED PARTITIONING Using fixed partitioning we are able to allocate the memory Here we are dividing the memory into a few fixed partitions.Every partition may not be of the si
What are race conditions? Race conditions are problems that take place due to the sharing of the same file by several processes. In such a case none of the processes is able to
Write note on process, process state? A process is in excess of the program code which is sometimes known as text section. It as well includes the current activity as represent
Q. Under what conditions do page faults occur? Explain the actions taken by the operating system when a page fault occurs. Answer: A page fault take places when an access to
What is meant by demand paging? Explain. Demand paging is a technique to implement virtual memory. In demand paging simply when a page is required it is brought into memory. As
What is paging? Paging is a memory management scheme that authorizes the physical-address space of a process to be noncontiguous. Paging evades the considerable problem of fi
Explain the various page replacement strategies. Page replacement-basic scheme with diagram Optimal page replacement LRU page replacement FIFO page replacement LRU
Operating Systems 1. Explain single Partition Allocation and Multiple Partition Allocation. 2. What do you mean by PCB? What useful information is available in PCB? 3. De
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