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Determine the reasons for Poor response time
Process busy or High I/O rates or High paging rates
LRU evicts the page which was last accessed the farthest into the past of any page resident in physical memory, i.e. the least-recently used page. LRU approximates OPT when the rec
List two types of system directories A) Device directory:- Describing physical properties of files. B) File directory :- Giving logical properties of the files.
Explain Busy Waiting Semaphores Weak, Busy-wait Semaphores a) The simplest way to implement semaphores. b) Useful while critical sections last for a short time, or we com
mention the three problems that mat be caused by wrong initialization and placement of wait() and signal()operations in the use of semaphore
Q. What are two differences among user-level threads and kernel-level threads? Under what situations is one type better than the other? Answer: (1) User-level threads are un
What is a Process Control Block? Every process in the operating system is represented by a process control block as well called a task control block. It contains several pieces
Explain Swapping Swapping is a method of temporarily removing inactive programs from the memory of computer system.
list trhe various classification of model and types?
Gopher Gallery consists of a shopping mall and a cart ride that covers the 150 acre habitat. There are m visitors and n single-person vehicles. Visitors stroll around the mall at
Q. Several CPUs provide for more than two modes of operation. What are two probable uses of these multiple modes? Answer: Although most systems merely distinguish between use
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