Saturday, September 26, 2009

Why do I have so much free drive space after Snow Leopard Upgrade?

It's because Apple changed the drive measuring scheme from base 2 to base 10, which makes sense for most of us.

When it’s running Snow Leopard, your Mac shows you the same gigabyte count on your drives as now generally appears on the manufacturer’s box, calculated in base 10, and not in base 2, which is what Leopard, all earlier versions of OS X and all current and earlier versions of Windows uses. This Apple knowledge base article explains:
A 200 GB drive shows 200 GB capacity (for example, if you select the hard drive’s icon and choose Get Info from the Finder’s File menu, then look at the Capacity line). This means that, for example, if you upgrade from an earlier version of Mac OS X, your drive may show more capacity than in the earlier Mac OS X version.

More info at Lifehacker

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