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SSTF (Shortest Seek Time First)
Q. It is occasionally said that tape is a sequential-access medium whereas magnetic disk is a random-access medium. In fact the correctness of a storage device for random access d
Question: a) What special measures must be taken to ensure the reliability, availability, and security of electronic commerce and digital business process? b) What are the c
Q. Consider a system that holds 5000 users. Presume that you want to allow 4990 of these users to be able to access one file. a. How would you denote this protection scheme in
___paging fecthces a page only when needed
Q. Presume that a scheduling algorithm at the level of short-term CPU scheduling favours those processes that have used the least processor time in the recent past. Why this algori
Question: (a) Red Hat Linux is distributed under the Open Source agreement. Explain what you understand by Open Source distribution system. (b) Write a short note on the L
why we say" OS is a resource allocator" and “OS is a control program"?
Hashed page tables A common approach for handling address spaces larger than 32 bits is to use a hashed page table. Every entry in the hash table having a linked list of elemen
What is meant by demand paging? Explain. Demand paging is a technique to implement virtual memory. In demand paging simply when a page is required it is brought into memory. As
Explain what semaphores are, their usage, implementation given to avoid busy waiting and binary semaphores. Semaphore definition Usage for mutual exclusion and process synch
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