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COMPARISON OF DISK SCHEDULING ALGORITHMS
Name Description Remarks (Selection according to requestor)
RSS Random scheduling for analysis and simulation
FIFO First in first out Fairest of them all
PRI Priority by process Control outside of disk queue management
LIFO Last in first out Maximize locality and resource utilization
(Selection according to requested item)
SSTF Shortest seek time first High utilization, small queues
SCAN Back and forth over disk Better service distribution
C-SCAN One way with fast return Lower service variability
N-step-SCAN Multiple queues Scan N records at a time
Service guarantee
FSCAN SCAN using 2 queues load sensitive
Q. The accelerating search for described in subsequent exercise is typical of hard-disk drives. By contrast floppy disks and several hard disks manufactured before the mid-1980s t
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TII stands for The abbreviation of TII is Table of incomplete instructions.
Determine the syntax of the assembler directive EQU The following is syntax of the assembler directive EQU: EQU
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