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What is a semaphore?
A semaphore 'S' is a synchronization tool which is an integer value that, apart from initialization, is accessed only by two standard atomic operations; wait and signal .Semaphores can be used to deal with the n-process critical section problem. It can be also used to resolve various Synchronization problems.
Additional Reference bits algorithm Here we keep an 8-bit byte for every page in memory. At standard intervals the reference bit is shifted by the OS. If a shift register conta
Explain the Real Time Operating System A real-time operating system comprises definite, fixed time constraints. Processing should be done in the defined constraints, or the sys
What are the requirements for solution of critical section problems? Mutual exclusion : If process p is implementing in its critical section then no other processes can be exe
List ways to share files among directories in operating systems. a. Copy file from one account into another. b. Link directory entry of "copied" file to directory entry of o
Ask question #Minimum 100 words accepted application of bounded and unbounded buffers
What is scheduler? A process migrates among the various scheduling queues throughout its life time. The OS must choose processes from these queues in some fashion. This selecti
Translation Look aside Buffer In a cached system, the base addresses of the last few indexed pages is maintained in registers named the TLB that adds in faster lookup. TLB has
Q. What kinds of networking does Windows XP support? How does Windows XP execute transport protocols? Describe two networking protocols. Answer: Support is offer for bo
Declare some Applications of Open Source Systems • Finance • Educational • Data Storage and Management • ERP (Enterprise Resource Planning) •File Sharing & FTP
What are the different files attributes? File name:-it's the name of the file. It's the name with which the user identifies. Identifiers:-it's created when a file is created
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