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What are a safe state and an unsafe state?
Answer: A state is safe if the system can allocate resources to every process in some order and still avoid a deadlock. A system is in safe state only if there exists a safe sequence. A sequence of processes is a safe sequence for the present allocation state if, for each Pi, the resource that Pi can still request can be satisfied by the present available resource in addition the resource held by all the Pj, with j
Briefly discuss on Bankers algorithm? The resource-allocation graph algorithm is not applicable to a resource-allocation system with multiple examples for each resource type.
Write a short note on disk structure Modern disk drives are initiate as large one dimensional array of logical blocks where the logical block is the smallest unit of transfer.
Define the properties operating systems: Batch :- Jobs with similar needs are batched together and run through the computer as a group by an operator or automatic job sequenc
The producer-consumermodel above has a standard human analogy of an assembly line. Humans have specialized skills, however, whereas threads running the same program do not need to
USER-LEVEL THREADS (ULT) In this level the kernel isn't aware of the existence of threads -- All thread management is complete by the application by using a thread library. Th
shell program for Armstrong number
Q. Timers could be utilized to compute the current time. Provide a little description of how this could be accomplished. Answer: A program could utilize the following ap
What are the phases of background processing? Phases are:- Job Scheduling. Job Processing. Job Overview.
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
how does it works
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