How do an old OS show a new CPU model correctly?

[sam1275tom]

Hello.
In my experience, even Windows XP running on a Intel Ivybridge CPU can show the correct model in the built in system information viewer, how?
I believed the human readable model number should be determined by family and stepping number, so they have no way to show a future CPU model correctly, or does there have a model string which can be read out?
Thanks.

 

[USAFRet]

Hello.
In my experience, even Windows XP running on a Intel Ivybridge CPU can show the correct model in the built in system information viewer, how?
I believed the human readable model number should be determined by family and stepping number, so they have no way to show a future CPU model correctly, or does there have a model string which can be read out?
Thanks.

You do realize that OS's, even old ones, get new information added, during the routine updates.
Right?

And CPU model number is pretty much of a standard format, in a standard place.

 

[sam1275tom]

Hello.
In my experience, even Windows XP running on a Intel Ivybridge CPU can show the correct model in the built in system information viewer, how?
I believed the human readable model number should be determined by family and stepping number, so they have no way to show a future CPU model correctly, or does there have a model string which can be read out?
Thanks.

You do realize that OS's, even old ones, get new information added, during the routine updates.
Right?

And CPU model number is pretty much of a standard format, in a standard place.

The OS I mentioned is a POSready2009 without any updates installed, it have no way to "know" a Ivybridge CPU's ID number.
Where's the model string? I cannot find it: https://en.wikipedia.org/wiki/CPUID

 

[USAFRet]

Hello.
In my experience, even Windows XP running on a Intel Ivybridge CPU can show the correct model in the built in system information viewer, how?
I believed the human readable model number should be determined by family and stepping number, so they have no way to show a future CPU model correctly, or does there have a model string which can be read out?
Thanks.

You do realize that OS's, even old ones, get new information added, during the routine updates.
Right?

And CPU model number is pretty much of a standard format, in a standard place.

The OS I mentioned is a POSready2009 without any updates installed, it have no way to "know" a Ivybridge CPU's ID number.
Where's the model string? I cannot find it: https://en.wikipedia.org/wiki/CPUID

That would probably fall under EAX=1: Processor Info and Feature Bits