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Suppose you have a hard drive that spins at 9000 RPM, and has 100 sectors of 512 bytes each on a particular track. If the head is already in position when a request for two adjacent sectors of that track is serviced, what is the expected effective data rate to get the data into the controller's buffer? Give the answer in Bps, with 3 significant digits.

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  1. 5 February, 00:28
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    Check the explanation

    Explanation:

    The expected effective data rate (which refers to the average amount of units of data, such as characters, bits, frames, blocks, or the transfer rate per unit of time from a source and received as valid by a sink.) to get the data into the controller's buffer is calculated below.

    Number of rotations per minute=9000

    Number of sectors=100

    Number of bytes for each sector=512

    Given head is already in position.

    effective data rate=9000*100*512/60

    =8192000 bytes per sec
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