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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 the usual mechanisms for switching from system mode to application mode, and vice versa?
(b) (i) Compare UMA (Uniform Memory Access) and NUMA (Non Uniform Memory Access) Microprocessor System.
(ii) What is the cache coherency problem in a multiprocessor environment?
(c) Discuss the following multiprocessor scheduling strategies Space Sharing Gang Scheduling.
(d) Three source files normally take 10 seconds, 18 seconds and 30 seconds respectively to compile by themselves on one processor in a processor pool. How long should it take to compile all the files using two processors? Explain what is liable to limit the time attainable for a parallel compilation, especially as the number of compilations increases.
(e) Steaming audio or video services are usually implemented over UDP instead of TCP. Assuming that both impose roughly the same computational burden on the processor, explain why this is the case?
Single level directory: This is the easiest directory structure. All the files are controlled in the same directory, which is simple to support and understand. Few of the li
FIRST FIT ALGORITHM Scanning a list along with if a free hole is available with necessary space for the process to allocate it allocates the process in that space. The first s
Question 3: (a) Fincorp Ltd is an insurance company wishing to change over to a better business system using an improved version of a financial information system (FIS). The direc
Q. Could you replicate a multilevel directory structure with a single-level directory structure in which arbitrarily long names can be used? If your answer is yes describe how you
Define the WindowsNT WindowsNT provides a two-level approach to resource management: process and thread. The process is the uppermost level and contains most of the application
THE PROGRAM WILL CHOOSE TWO RANDOM NUMBERS,THEN PRINT THEM OUT AS AN ADDITION PROBLEM.THE PROGRAM WILL THEN ASK THE USERTO ENTER THE CORRECT ANSWER.IF THE ANSWER IS CORRECT,THE PRO
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The term IPC (Inter-Process Communication) defines several paths by which different process executing on some operating system interact between each other.
Now, let us discuss two related algorithms for deciding which pages to evict. The clock algorithm is one of the most popular choices. It works by keeping frames in a circular struc
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