Its the design of the software.
"xfile" <cou-cou@remove.nospam.com> wrote in message
news:u7yMNWXFHHA.420@TK2MSFTNGP06.phx.gbl...
> Hi,
>
> Thanks and exactly as you mentioned, but here is one thing that I don't
> know:
>
>> Home editions can be installed on boards with one physical processor.
>> Business editions can be installed on boards with one or two physical
>> processors.
>
> Is above bound to license or is by design of the software?
>
> I don't know much about the architectures of Vista, XP, or even Win3.1 for
> that matter 
>
> "Colin Barnhorst" <colinbarharst(remove)@msn.com> wrote in message
> news:%23ex1$PXFHHA.2464@TK2MSFTNGP06.phx.gbl...
>> Another interpretation is that the each cpu is a physical processor and
>> each core is a logical processor. You can see the logical processors on
>> the Performance Tab in Task Manager. There will be a CPU Usage History
>> graph for each logical processor.
>>
>> Home editions can be installed on boards with one physical processor.
>> Business editions can be installed on boards with one or two physical
>> processors. Boards with more physical processors require one of the
>> Server editions.
>>
>> Hyperthreading doubles the number of logical processors so an Intel P4
>> with hyperthreading enabled appears exactly the same as an Intel Core
>> Duo, Core 2 Duo, or AMD64 x2 on the Performance Tab.
>>
>> All editions of XP, Vista, and Server work the same in this regard.
>>
>> "xfile" <cou-cou@remove.nospam.com> wrote in message
>> news:%23DS4GGXFHHA.1248@TK2MSFTNGP02.phx.gbl...
>>> My 2 cents,
>>>
>>> In summary, cores in CPUs is designed to be independent to OS, and it's
>>> just how much the applications (including OS) can take advantages of its
>>> processing power.
>>>
>>> "Tom Porterfield" <tpporter@mvps.org> wrote in message
>>> news:uz8Tq4WFHHA.5000@TK2MSFTNGP03.phx.gbl...
>>>> churin wrote:
>>>>> Which version of Windows Vista support dual core cpu? Is there any
>>>>> which support quad core cpu?
>>>>
>>>> All versions of Vista support a dual core processor. Same for quad
>>>> core. Home Basic and Home Premium only support a single processor
>>>> socket, but that can be a single multi-core processor in that socket.
>>>> Business, Enterprise and Ultimate support two processor sockets, again
>>>> that could be a multi-core processor in each socket.
>>>> --
>>>> Tom Porterfield
>>>
>>>
>>
>>
>
>