IMac 320GB HD only shows 298GB total ?

I am pretty new to the MAC world and noticed that my newly purchased IMac 24" which comes with a 320GB hard drive, only shows a total size of 298GB. Where did the other 22GB go? Does this file system use it up for something I can't see?
Thanks in advance,

Hello and Welcome to Apple Discussions.
Phillip is unnecessarily harsh but what he says is true. If you look at the iMac pages online you'll see a disclaimer:
{quote:title=http://www.apple.com/uk/imac/specs.html:}{quote}
1GB = 1 billion bytes; actual formatted capacity less.
I installed a 320GB drive in my 2003 iMac and have 297.97GB capacity. This applies to all computers and systems and is much more noticeable in these days of massive hard drives.
BTW, MAC = Media Access Control, Mac is short for Macintosh. . Welcome to the Mac World!
mrtotes

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IMac 320GB HD only shows 298GB total ?

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