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Toshiba 40GB Perpendicular Magnetic Record Drives

Posted by CowboyNeal on from the hot-new-methods dept.

freitasm writes "Toshiba is now shipping a 40GB 1.8" hard disk, the first in the industry based on the PMR (Perpendicular Magnetic Recording) technology. The disk stores 40GB in a single platter, and there are plans to release a 80GB version later this year. The first models are already being used on Toshiba's new Gigabeat MP3 players." It's all part of their plan to squeeze more bits onto the head of a pin.

2 of 277 comments (clear)

  1. Re:Faster... by qbwiz · · Score: 5, Informative

    The areal density will be greater, so at the same rotational velocity the peak data transer rate should be around 1.15 ( sqrt(133/100) ) times as high as before. Seek times might also be reduced (for the same amount of data on the disk), but when both drives are full, I think the seek times would both be the same.

    --
    Ewige Blumenkraft.
  2. Perpendicular Magnetic Recording Bible by adamdewolf · · Score: 5, Informative
    If you really want to know more about this tech,
    I found this book earlier in the year.
    It's pretty much the Bible for perpendicular magnetic.

    Gets really in-depth.

    Perpendicular Magnetic Recording
    by Sakhrat Khizroev, Dmitri Litvinov
    "This book is intended for graduate students, young engineers and even senior and more experienced researchers in this field who need to acquire adequate knowledge of the physics of perpendicular magnetic recording in order to further develop the field of perpendicular recording."
    --
    Ignorance is amusing, stupidity is annoying.