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Hard drive formatted space

Discussion in 'Hardware' started by ljCharlie, Mar 31, 2004.

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  1. ljCharlie

    ljCharlie Thread Starter

    Mar 19, 2004
    Can anyone explain why after a hard drive, let's say 20GB, is formatted, the hard drive capacity is only 18.6GB or something along that line? The capacity tends to decrease more as the hard drive size gets larger. For example, I installed a 120GB Westerndigital harddrive with 8MB of cache and I lost 8.3GB of space after formatted. Am I doing something wrong or is the manufacture actually telling consumer the wrong number? For instance, on a Westerndigital wesbite a 20GB WD200BB hard drive, the specs show a formatted capacity of 200,049 MB but after I formatted the hard drive, the realized or actual size is approximately 1,449MB less the total size than what's reported on the Westerndigital webpage.

    Any response is appreciated.

  2. McTimson


    Aug 15, 2002
    It's the way drive manufacturers and Windows handle GB's....Drive manufacturers use 1,000 kilobytes = 1MB, and Windows uses 1,024 kilobytes = 1MB....so the box will say 20GB, because it is, according to their scpecifications...but Windows will say it's 18.6GB...either way, you're not really losing anything, it's kind of like currency values in different countries... in the US, a dollar is a dollar, but in Canada, it's worth more....but everything else costs more, so it all works out.
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