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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.
draw a state diagram showing the transissions of a process from creation to termination
copy-on-write
bootstrap
Define the properties operating systems: Batch :- Jobs with similar needs are batched together and run through the computer as a group by an operator or automatic job sequenc
Removing System Dependencies Because portions of the client - server application program may execute on different machines, it is very important for the developer to remove the
Define drawback of Distributed systems Reliability is a drawback of Distributed systems
Q. Operating System as User Interface? • Every general purpose computer comprises the operating system, hardware, system programs and application programs. The hardware compris
what are the overall concepts of deadlock
Ask question #Minimum 100 difference between bounded and unbounded buffer words accepted#
What are the disadvantages of linked allocation? The drawbacks are a. Used only for sequential access of files. b. Direct access is not supported c. Memory space neede
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