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QUICK FIT ALGORITHAMS
Here we keep apart lists for holes and processes. Therefore this reduces the searching time for holes
Hole list and Process list. If we organize the list of holes in an ascending order we are able to easily find out the holes according to the size. And we are able to easily insert the processes into the holes.
But here it will be extremely difficult to merge some holes which are created in between two processes. For the reason that we are using separate lists for process and holes.
Banker's Algorithm In this analogy Customers ≡ processes Units ≡ resources, say, tape drive Ba
Deadlock Prevention Prevention is the name given to method that guarantee that deadlocks can never happen for the reason that the way the system is structured. Since 4 conditio
What is the use of inter process communication. Inter process communication gives a mechanism to allow the co-operating process to communicate with each other and synchronies t
why we say" OS is a resource allocator" and “OS is a control program"?
What are Tree-structured directories We can generalize the directory structure to a tree of arbitrary height. This permits the user to create their own sub directories and to c
Explain the basic concepts of segmentation. Segmentation definition User view of program Hardware used with diagram-segment table, base, limit & offset Protection and
Q. Consider a calculating environment where a process is given the privilege of accessing object only n times. Suggest a scheme for implementing this policy. Answer: Add an i
Write a note on deadlocks. The proper definition of deadlock A set of processes is deadlocked if every process in the set is waiting for an event that only a proces
What are the five major activities of an operating system in regard to file management? The creation and deletion of files The creation and deletion of directories The s
Define a program in execution is known as A program in execution is known as a process
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