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Q. What are the three main activities of an operating system in regard to secondary-storage management?
Answer:
1) Free-space management
2) Storage allocation
3) Disk scheduling
Objectives 1. Login to UNIX system and logout 2. Learn features of the vi editor and to use online help (main pages). Gain experience using them to create a document
list the prevention of mechanism for race condition with operating system
What is thrashing? It is a method in virtual memory schemes when the processor spends most of its time swapping pages, rather than implementing instructions. This is because o
Before proceeding with its execution, every process must obtain all the resources it needs is called Hold and wait
Synchronization serves two purposes: 1) to ensure safety for updates on shared data (e.g. to avoid races conditions), and 2) to coordinate and order actions taken by threads (e.g.
When a program issues a memory load or store operation, the virtual addresses (VAs) used in those operations have to be translated into "real" physical memory addresses (PAs). This
a summary of what operating system do
Major page fault: If the page is not loaded in memory at the time the fault is stated, then it is named major or hard page fault. The handler in the machine requires to search a
Define the “Throughput” of a system Throughput is Number of programs processed by it per unit time
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