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    HDD Capacity and Access Time

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    Assume the specification of a hard disk drive shows the following characteristics:
    16 surfaces
    1024 tracks per surface
    256 sectors per track
    512 bytes/sector
    Track-to-Track seek time of 10 milliseconds
    Rotational speed 3,000 rpm

    (a). What is the capacity (in MB) of the hard disk drive?
    (b). What is the access time (in ms)?

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    Solution Preview

    a. 2,048 MB
    512 bytes x 256 sectors X 1024 tracks x 16 heads = 2,147,483,648 bytes / 1024 = 2097152 ...

    Solution Summary

    Given an example of a hard drive structure, answers are provided to the capacity and access times for that disk.