what is the computer cpu id

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2.00/5 (2 votes)

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dear all
please, i would like to know
1- what is the cpuid of the computer?
2- what is the instruction to get it in c++,c?
3- is each computer has unique cpuid?
with my great thanks

Posted 29-Jun-11 5:39am

suad2010

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3 solutions

Solution 2

Check these Windows APIs for Win32_Processor Class.
Update:
How To Get Hardware Information (CPU ID, MainBoard Info, Hard Disk Serial, System Information , ...) - WMI implementation in C# with useful info.
If only for cpuid see MSDN sample here.

Posted 29-Jun-11 6:34am

Sergey Chepurin

Updated 29-Jun-11 10:39am

v3

Comments

Sergey Alexandrovich Kryukov 30-Jun-11 19:05pm

Useful, should resolve the problem, my 5.
--SA

Sergey Chepurin 1-Jul-11 4:57am

Thank you, but you don't look like in need of cpuid info.

Solution 3

1. pass
2. pass

3. Nope - Processor Serial Number (call with EAX = 3)
that was one of the intended pieces of information that may be retrieved with this instruction. However privacy concerns forced it to no longer be implemented. AMD don't implement this feature.
(Even when it was, the user had to have enabled it in the bios - so not much good for protection schemes)

Posted 29-Jun-11 11:57am

enhzflep

Comments

Albert Holguin 29-Jun-11 21:02pm

sounds like you went to the wikipedia link and read it..lol

enhzflep 29-Jun-11 21:12pm

Ding, ding, ding!
We've got a winner.

Crap! There was a link here for that? :wtf:
I'd forgotten what the needed value for eax was, and had hoped to have my memory refreshed on when the hoo-har re:privacy had happened.

1 outta 2's not bad I suppose..

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Richard MacCutchan · Accepted Answer · 2011-06-29T05:57:00

Solution 1

Well, strangely enough, it's this[^].

Posted 29-Jun-11 5:57am

Richard MacCutchan

Comments

Albert Holguin 29-Jun-11 15:09pm

That answer actually has most of the things OP is looking for...

Sergey Alexandrovich Kryukov 30-Jun-11 19:05pm

Strangely enough, a 5. :-)
--SA

Richard MacCutchan 1-Jul-11 4:23am

Thanks, :)