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One way to use contiguous allocation of the disk and not suffer from holes is to compact the disk every time a file is removed. Since all files are contiguous, copying a file requires a seek and rotational delay to read the file, followed by the transfer at full speed. Writing the file back requires the same work. Assuming a seek time of 5 msec, a rotational delay of 4 msec, a transfer rate of 8 MB/sec, and an average file size of 8 KB, (a) how long does it take to read a file into main memory then write it back to the disk at new location? (b) Using these numbers, how long would it take to compact half of a 16-GB disk? (c) Dose compacting the disk ever make any sense?
A survey was done where a random sample of people 18 and over were asked if they preferred comedies, dramas, or neither. The information gathered was broken down by age group and t
i need to know newton''s second law. my science book is glencoe mcgraw 6th grade.
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Automated clearing house (ach) A across the country settlement and selection program that provides for automated submission and arrangement of resources. Although the phrase Elec
The square of the sample correlation coefficient is typically denoted r2 and called the coefficient of determination. It estimates the fraction of the variance in Y that is explain
Problems 15. An art professor was interested in seeing what size group is best to prime the pump so to speak to encourage strangers to gather together in front of various exhibi
Bond redemption The regaining of control of bonds formerly issued by expense of amount due to the owner.
Vital statistics may be interpreted in two ways-in a broader sense it refers to all types of population statistics by whatever mode collected while in a narrower sense it refers o
What is a Business-type activity Reported in the government-wide financial statements. Financed in whole or in part by fees charged to external parties for goods or services that
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