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Explain FIFO page replacement
A FIFO replacement algorithm associates with every page the time when that page was brought into memory. When a page must be changed, the oldest page is chosen. We can make a FIFO queue to hold all pages in memory. We change the page at the head of the queue. Insert page at the last of the queue.
Question : (a) The dynamic allocation problem is how to satisfy a request of size n from a list of free holes into memory. The best-fit, first-fit and worst-fit strategies are
what is unbounded buffer
In modern operating systems, applications do not directly access the physical memory. Instead, they use so-called virtual memory, where each virtual address is translated to a phys
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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
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Q. Explain a mechanism by which one segment could belong to the address space of two different processes. Answer: Because segment tables are a collection of base-limit register
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