Uniquely identify a Mac

I'm a fan of Apple's Technical Notes (odd, I know). I thought this one, entitled 'Uniquely Identify a Macintosh Computer' interesting enough to share (some people might disagree with me though).It is all about how you should identify Macs in a number of situations (inventory being the big one). I know what you're thinking, why not just use the serial number of the Mac and be done with it? Well, Sparky, it would seem that a Mac's serial number can actually change (well, the value in the system changes at least) when hardware is swapped out.

Give the tech note a read, and find out more than you ever wanted to know about serial numbers.