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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.
- Spring '11