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Explain how protection is provided for the hardware resources by the operating system.
Dual mode operation
1. User mode - Implementation done on behalf of a user.
2. Monitor mode (also kernel mode or system mode) - Implementation done on behalf of operating system.
Explain Threads for Executing Concurrent Application Code The thread has been introduced in many operating systems as an efficient mechanism for executing concurrent applicatio
For this exercise I wanted to give you some real-world examples of useful bash scripts. Therefore, you will write a couple of scripts that I actually use in my teaching to automate
Optimal page replacement An optimal page replacement algorithm has the least page fault rate of all algorithms. The algorithm states that a 'replace the page that will not be
Consider a setting where processors are not associated with unique identifiers but the total number of processors is known and the processors are organized along a bidirectional ri
Hierarchical paging method Most modern computer systems maintain a large logical-address space. In this situation the page table itself turns into excessively large. To remedy
Describe the purpose of the checkpoint mechanism. How habitually must checkpoints be performed? Explain how the frequency of checkpoints affects: System performance while no
Research the phenomenon of data races. Give an example of how an unprotected data race can give rise to data inconsistency. How do OpenMP and Cilk resolve this problem? Data
Resolution of externally defined symbols is carried out by Resolution of externally defined symbols is carried out by Linker
Explain a working of file control block A file control block (FCB) has information about the file, containing ownership, permission, and location of the file contents. The log
Write a short note on PCB? Every process is represented in the operating system by a process control block also called a task control block. It contains more information regard
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