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Explain why SSTF scheduling tends to favor middle cylinders over the innermost and outermost cylinders.
The center of the disk is the location having the fewest average distance to all other tracks. Therefore the disk head tends to move away from the edges of the disk. Here is another way to think of it. The present location of the head divides the cylinders into two groups. If the head is not in the center of the disk and a latest request arrives, the new request is more likely to be in the group that contains the center of the disk; therefore, the head is more likely to move in that direction.
The term ‘page traffic’ explains Page traffic’ explains the movement of pages in and out of memory.
1. Problem Domain You will be considering the Wumpus world introduced in Russell and Norvig (2009) Chapter 7. For this programming assignment you'll use Prolog's ability to do in
FIFO page replacement This is the easiest page replacement algorithm. At this juncture the 1 st page entering is the 1 st to leave that is the oldest page leaves. To execute
Forking is an important phase of Unix, critical to the support of its design strategies, which encourages the implementation of filters. In Unix, a filter is a process that reads i
Example 1. The diagram illustrating the data structures of in-memory VFS objects and on-disk objects and their relationships on slide 24 of the lecture notes OSD.4. This diagram i
Q. Illustrate Scope of Consumer behaviour ? Scope of consumer behaviour is extremely wide due to following reasons: >>Ever rising intensifying competition. >>Additional a
What is real time system? A real time system has well explained, fixed time constraints. Processing must be done within the explained constraints, or the system will fail. It i
What is the different between basic synchronization and high level synchronization
What is long-term, medium-term, short-term? In a batch system many processes are submitted than are able to be executed immediately. These processes are reel to a mass storage
Discuss the high barriers to entry in the market for PL operating systems
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