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Editorial Team
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Asked: 2026-06-08T05:02:00+00:00

I’m currently writing an application that retrieves hardware information about a computer. I need

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I’m currently writing an application that retrieves hardware information about a computer.

I need some sort of unique identifier for each hardware component, such as an UID or S/N. I can see this “DeviceID” member in almost every component (inherited from CIM_LogicalDevice), and it says:

“Address or other identifying information to uniquely name the logical device.”

Sounds good! Does this mean that it’s unique for just that specific computer; or is it unique for “all computers in the world” (which is what I need).

Thanks!

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1 Answer

  1. Editorial Team

    Turns out this was not the best way of uniqely name a device, since it COULD be the same UID across different computers.

    Instead, I collected a whole bunch of data from each components in the computer (motherboard, CPU, GPU, memory, NIC etc.), hashed them with MD5 to create a sort of “identifier”. Works pretty well.

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