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List two types of system directories
A) Device directory:- Describing physical properties of files.
B) File directory :- Giving logical properties of the files.
In fixed portioning scheme, what are the advantages of using unequal- size partitions? With unequal-size partitions there are two probable ways to assign process to partitions.
Q. Why is it important to scale up system bus and device speeds as the CPU speed increases? Answer: Consider a system which carries out 50% I/O and 50% computes. Doubling-up
describe main points of multiuser and multi tasking operating systems.
Explain the Architecting For Threads When available, threads are an integral part of any multitasking server application program. It is important that the operating system prov
what is semantics of system call execution?
Q. Give the reasons why Windows XP, Solaris and Linux implement multiple locking mechanisms. Explain the circumstances under which they use mutexes, spinlocks, semaphores, adaptiv
Processes have valid and invalid entries on their page tables. The valid entries all point to some where "real" (e.g. a physical page, or some portion of disk in case of non-reside
Q. Present an algorithm for reconstructing a logical ring after a process in the ring fails? Answer: Typically distributed systems utilize a coordinator process that performs
Define FIFO Page Replacement Algorithm This policy simply eliminates pages in the order they arrived in the main memory. By using this policy we simply remove a page based upo
What are the five major activities of an operating system in regard to process management? The creation and deletion of both user and system processes The suspension and res
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