Seek time - There is three basic position for the...

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Seek time: This is the slowest (max 50 ms) of the three factors that is added to the get access time. It doesn’t apply to devices with fixed read or write heads. To read or write date in a particular place on the disk the head of the disk needs physically moved to the correct place. This process is known as seeking , and the time it takes for the head to move to the right place is the seek time . Blocking the records mineralize seeking time. Search time Also know as rotational delay. This is the time it takes to rotate the disk until the requested record is moved under the read or write head.
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Unformatted text preview: There is three basic position for the positioning of records . One is the best possible situation where the record is next to he read or write head. Another is the average situation when the record is in the middle of rotation. And the worst situation is when the record just pasted the head . Transfer time: Transfer is the fastest of the three factors. Is the process when the date is actually transferred from secondary storage to main memory. Data-transfer time varies from device to device but a typical values is 0.00094 ms per byte....
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This note was uploaded on 04/19/2011 for the course CS 250 taught by Professor Idontknow during the Spring '11 term at City College of San Francisco.

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