How to retrieve unique identification from compute

问题:

What can I extract from computer to identify it.

MAC address, Hard disk serial number, then?

回答1:

I don't have a code to show you right now but i have done similar things, by cominning CPU Id and Harddrive serial No, that's how you get the unique no;
try this;
http://www.vcskicks.com/hardware_id.php