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Hard disk question

Discussion in 'PC Hardware' started by shadowhawk, 2002/04/21.

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  1. 2002/04/21
    shadowhawk

    shadowhawk Inactive Thread Starter

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    I saw a picture of the inside of a hard disk. There are 3 platters stacked on top of each other. How does the needle with the read and write heads get to the surfaces of the 2 platters under the top one?
     
    shadowhawk,
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  2. 2002/04/21
    JohnB Lifetime Subscription

    JohnB Well-Known Member

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    Havn't taken one apart for some time, but I think there are separate needles (arms?) for each platter in the HD.
     
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  4. 2002/04/22
    Rancher

    Rancher Inactive

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    hard drive

    This taken from IBM

    Usually, there is one head for each disk surface on which data is stored. These heads fly at a height of two or three microns above the disk surface (one micron = one thousandth of a millimeter). Depending on the type of drive, these disks can rotate up to 10,000 RPM, which means the heads fly at speeds approaching 100 MPH. :)
     
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  5. 2002/04/22
    shadowhawk

    shadowhawk Inactive Thread Starter

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    Oh, OK.
     
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