by Basic205 on January 13th, 2010

Basic205

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I have a question about computer hard drives why is it when i buy a 300 gb harddrive when i put it in it dose not say 300 gb it's less?

Answers. 2 helpful answers below.

  • by Byhtomit on January 20th, 2010

    Byhtomit

    The 300GB capcity is the unformatted size. Typically, the formatted size is about 5% less and the drive has to be formatted in order to be able to use it.

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  • by hmmcclish on January 13th, 2010

    hmmcclish

    Western Digital says the following:

    "For simplicity and consistency, hard drive manufacturers define a megabyte as 1,000,000 bytes and a gigabyte as 1,000,000,000 bytes. This is a decimal (base 10) measurement and is the industry standard. However, certain system BIOSs, FDISK and Windows define a megabyte as 1,048,576 bytes and a gigabyte as 1,073,741,824 bytes. Mac systems also use these values. These are binary (base 2) measurements."

    So basically the manufacturers do it the easy way, but the easy way is an overestimate.

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