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<blockquote data-quote="vansmith" data-source="post: 915894" data-attributes="member: 71075"><p>It's how a hard drive size is calculated. Most operating systems including OS X pre-10.6 measure(d) hard drive size using base-2 notation. In other words, a MB was equal to 1024 KB and a GB was equal to 1024 MB and so on. When you buy a hard drive from a store, the size is measured in base-10 notation meaning that a MB equals 1000 KB and a GB equals 1000 MB. So, under Leopard, the hard drive size is calculated as being ~298 GB because the size is "converted" from base-10 to base-2. If you use the calculator <a href="https://platinumdatarecovery.com/hard-drive-capacity-calculator" target="_blank">here</a>, it will show you that a base-10 HD size of 320 GB is 298.02GB is base-2 notation.</p><p></p><p>Starting with Snow Leopard, OS X measures hard drive sizes with base-10 notation, much like manufacturers do. So, my 320GB HD is now reported as 319.73GB.</p></blockquote><p></p>
[QUOTE="vansmith, post: 915894, member: 71075"] It's how a hard drive size is calculated. Most operating systems including OS X pre-10.6 measure(d) hard drive size using base-2 notation. In other words, a MB was equal to 1024 KB and a GB was equal to 1024 MB and so on. When you buy a hard drive from a store, the size is measured in base-10 notation meaning that a MB equals 1000 KB and a GB equals 1000 MB. So, under Leopard, the hard drive size is calculated as being ~298 GB because the size is "converted" from base-10 to base-2. If you use the calculator [URL='https://platinumdatarecovery.com/hard-drive-capacity-calculator']here[/URL], it will show you that a base-10 HD size of 320 GB is 298.02GB is base-2 notation. Starting with Snow Leopard, OS X measures hard drive sizes with base-10 notation, much like manufacturers do. So, my 320GB HD is now reported as 319.73GB. [/QUOTE]
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