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Q. What are the tradeoffs concerned in rereading code pages from the file system versus using swap space to store them? Answer: If codes pages are accumulate in swap space th
Direct memory access Many computers avoid burdening the main CPU with programmed I/O by offloading sine if this work to a special-purpose processor known as a direct memory add
linked allocation using i node
Forking is an important phase of Unix, critical to the support of its design strategies, which encourages the implementation of filters. In Unix, a filter is a process that reads i
What are the advantages of multi threading? Multithreading a code can have several advantages. Improve application responsiveness --Any program in which var
Suppose your process starts up, and allocates some memory with malloc(). The allocator will then give part of a memory page to your process. The OS then updates the corresponding p
How can the deadlock be prevented-Safe State Safe state : A state is safe if the system is able to allocate resources to each process in some order and still avoid deadlock.
What are the multithreading models? There are three models:- a) Many-to-One model b) One-to-One model c) Many-to-Many model
Second chance Algorithm When the page is chosen the reference bit is checked to see whether it has been referenced before. If that is the case after that it is given a second c
Memory Protection
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