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On a particular brand of disk drive, the time that it takes for the disk arm to pass over a single disk track without stopping is 500 nanoseconds. However, once the head reaches the track for which it has a service request, it needs 2 milliseconds to "settle" over the required track before it can start reading or writing. Based on these timings, compare the relative times required for FCFS, SSTF, and LOOK to carry out the schedule given below. You will need to compare SSTF to FCFS, LOOK to FCFS, and LOOK to SSTF. As in our previous question, when the first request arrives in the disk request queue, the read/write head is at track 50, moving toward the outer (lower-numbered) tracks.
The requested tracks are: 35, 53, 90, 67, 79, 37, 76, 47
A set is represented internally as an array of Booleans. Array element a[i] is true if integer "i" is in the set. Array element a[j] is false if integer "j" is not in the set. The no-argument constructor initializes a set to the so-called "empty s..
as a software engineer what are the means of tracking you would use to track and monitor the reuse history of a
What features does the Internet advertising survey recommend for online marketing campaigns.
1. what are some ways that you could help link your organizations business metrics to your it department? which
castle point antique auction operates a successful web site that offers an auction forum for buyers and sellers of fine
take a fixed partitioning scheme with equal-size partitions of 2^16 bytes and a total main memory size of 2^24 bytes. A process table is maintained that includes a pointer to a partition for each resident process.
Determine the I/O access speed utilizing the CPU 3 and each of the hour disk drives as they evaluate the following track requests: 0, 31, 20, 15, 20, 31, 15.
Write the same program using a for-loop - write the same program that will display only the even numbers and odd numbers from 1 to N.
define how to combine multiple border attributes into one style declaration, using the example of an 8-point red dashed border.
You have been given a file that contains fields relating to CD information. Using the steps of normalization, create a logical data model that represents this file in third normal form.
Consider a typical job order that might include the following information. make a single table to hold all the information required to store a job order including this information. Next, apply normalization to reduce this table to third normal for..
How much would you allocate for the management reserve? What are your assumptions about these reserves.
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