Difference x86 and x86_64

[arshad hussain]

On Sun, Dec 23, 2012 at 9:28 PM, Shraddha Kamat <sh2008ka at gmail.com> wrote:
> I used x86 - bzImage to boot my machine and 'uname -a' shows this :-
>
> Linux phx4 3.7.1 #3 SMP Sun Dec 23 16:28:20 IST 2012 x86_64 x86_64
> x86_64 GNU/Linux
>
> where I see x86_64 arch (and not x86_64) ???
>
> What is the difference between arch/x86 and arch/x86_64 ?

Very old days gone by , 32bit systems was known as 'i386'
and 64bit system was called x86_64. ( If at all there were 64bit systems).

Then we moved into and started calling x86 (32-bit system ) and x86_64
(64-bit system)

Then kernel Dev's have got rid of this distension and name everything as x86.
That is within, src/arch folder you will only find x86 folder.

Thanks.

>
>
> -- Shraddha
>
>
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