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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 to its address space during execution. Heap and stack are examples of such allocated memory.
2. External fragmentation and internal fragmentation.
3. Ability to share code across processes.
What lead to the concept of paging? The main memory is separated into two parts that are one for the resident operating system, and one for the user processes. We may perhaps p
a program that can do cpu scheduling algorithm priority using javascript or php to display gaant chart and calculate waiting and average waiting time
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Explain how protection is provided for the hardware resources by the operating system. Dual mode operation Sharing system resources needs operating system to make sure
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EXPLAIN MULTITASKING IN DETAIL
What is the purpose of system calls? System calls permit user-level processes to request services of the operating system.
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Q. Presume that a distributed system is susceptible to server failure. What mechanisms would be needed to guarantee the exactly once semantics for execution of RPCs? Ans
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