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Mention the various features that characteristics the deadlock condition.
The four circumstances that give rise to deadlock condition are:
1) Mutual exclusion: As a minimum one resource must be held in the non-sharable mode that is only one process is able to be used at a time. If another process demand for the resource it should wait.
2) Hold and wait: A process should be holding at least one resource and wait for other process to give the resource to it.
3) No preemption: Resources not able to be preempted; it cannot be taken from one process with force.
4) Circular wait: Assume consider a set of process {p1, p2, p3.......} in the waiting queue such that p1 is waiting for the resource held by process p2 etc.
Relative file organization A relative file is an array of fixed-length slots and the records can be inserted in the first free slot found from the beginning of the file and
Explain briefly the working of semaphore with example ? The E.W. Dijkstra (1965) abstracted the key idea of mutual exclusion in his concepts of semaphores. Definition A s
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what is hashed page tables & explain of there work & figure
SSTF (Shortest Seek Time First) After a demand go to the closest request in the work queue regardless of direction Decrease total seek time compared to FCFS Disadv
Define which is not a key piece of information, stored in single page table entry, supposing pure paging and virtual memory A reference for the disk block which stores the pa
What is the use of FIFOs in client-server applications
operating systems and its types together with its design issues and their examples.
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Consider a scenario of post mailbox, there are two processes named sender S and receiver R. Both processes can communicate with each other by name along with message. You need to I
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