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Enhanced second-chance algorithm.
When we increase the second-chance algorithm by considering both the reference bit and the modify bit as an order pair. We have the following four possible classes.
a) (0,0) neither recently used nor modified - best page to replace.
b) (0,1) not recently used but modified - not quite as good.
c) (1,0) recently used but clean - it probably will be used again soon.
We can view an operating system as a resource allocator. Explain. We can outlook an operating system as a resource allocator. A computer system has Many resources (software and
i am just wondering if you have expert in nachos operating system thank you
Define logical address and physical address. An address formed by the CPU is referred as logical address. An address seen by the memory unit that is the single loaded into the
what is exit status
When we download a movie from the Internet, we don't care about, say, packet sizes. However, even ifwe are not aware of howlow-level details of networks are implemented, our data i
Define the Scheduling in Multitasking Earlier we learned the concepts and advantages of multitasking. In a system in which one or more tasks( threads or processes) attempt to s
Debugging a multi threaded program The following list points out few of the more frequent oversights and errors that can cause bugs in multithreaded programs. 1. Ephemeral
In a multiprogramming and time sharing environment several users share the system simultaneously .what are two such problems?
What is scheduler? A process migrates among the various scheduling queues throughout its life time. The OS must choose processes from these queues in some fashion. This selecti
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