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Q. List the four steps that are essential to run a program on a completely dedicated machine. Answer: a) Reserve machine time b) Manually load program into memory c)
The question of fairness, regarding page eviction, is a hard one. How do we decide what is fair? Many operating systems use global LRU, where pages from all processes are managed t
To explore the UNIX file system, use basic UNIX commands and use a text editor. Task: 1. Logon to Linux. 2. Create a directory "Unix" under your home d
What are the different ways in which a thread can be cancelled? Cancellation of a target thread may happen in two different scenarios: Asynchronous cancellation: One thr
Perform alpha-beta pruning on the following tree. Put an "X" over each node that is pruned. Put the final value next to all other nodes. Indicate which action MAX should take: to B
LRU approximation page replacement In this we are able to use the reference bit associated with the page entry to choose a page to be removed. The various algorithms used for
What is virtual file system? A Virtual file system switch (VFS) or Virtual file system is an abstraction layer on top of a more concrete file system. The purpose of a VFS
Q. Explain about Operating System Services? An operating system offers services to programs and to users of those programs. It provided by one environment for execution of
Evicting the most-recently used (MRU) page does very well on LRU's worst case. In general, however, MRU is a bad idea, since many programs exhibit temporal locality in their memory
What is a multiprocessing system? Multiprocessor systems are those systems that use additional than a single processor for program execution. It is done for raising the executi
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