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What are the objectives for a file management system? To meet the data management wants and requirements of the user, which embrace storage of data and the ability to
Describe Three major roles of operating systems in business computer systems
What is turnaround time? Turnaround time is the interval from the time of submission to the time of completion of a process. It is the sum of the periods exhausted waiting to g
Second-Chance algorithm When a page has been selected, we inspect its reference bit. If the value is 0, we proceed to replace this page. If the reference bit is set to 1, thoug
Define what an assembler is An assembler is machine dependant.
When the Page fault frequency in an operating system is reduced Locality of reference is appropriate to the process
In which page replacement policy Balady’s anomaly occurs? FIFO (First in First Out)
The optimal replacement policy, called OPT, is to evict the page which will be accessed farthest into the future. Since we can't predict the future precisely, we can't implement OP
Compare contiguous-memory allocation with pure paging in the following aspects: 1. In support of dynamic memory allocation: most systems allow programs to allocate more memory t
Question: (a) Modern processors operate in one of two modes: one for the operating system and one for applications. What is the purpose of having these two modes? What are
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