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Q. Provide two programming instances in which multithreading provides better performance than a single-threaded solution.
Answer: (1) A Web server that services every request in a separate thread.
(2) A parallelized application such like matrix multiplication where different parts of the matrix may be worked on in parallel.
(3) An interactive GUI program such like a debugger where a thread is used to monitor user input and another thread represents the running application and a third thread monitors performance.
describe competing process
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
Problem: a) Define a ‘file' and list the objectives of the file management system. b) List the ways in which programs access files and determine for what file types you woul
How does user specify block to be fetched in direct access? By specifying the relative block number, relative to first block in file, which is block 0.
Problem: (a) Modern operating systems are interrupt driven. If there are no processes to execute, no I/O devices to service, and no users to whom to respond, an operating syste
Problem: a) Define the term ‘process' and what are the different constituents of a process. b) In the three-state process model, what does each of the three states signify?
What is meant by demand paging? Explain. Demand paging is a technique to implement virtual memory. In demand paging simply when a page is required it is brought into memory. As
A working Ubuntu Linux operating system. You can use a Live-CD to complete this assignment. Create an empty text file named assignment6.txt in your home directory. Edit this
Since most of the programs require a lot of memory allocation/deallocation, we expect the memory management to be fast, to have low fragmentation, make good use of locality, and be
Q. What is the occupation of the object manager? Answer: Substance present a generic set of kernel mode interfaces to user mode programs. Objects are influenced by the execut
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