Just to cover your question of the i586 (Pentium P5) being a 32bit, yes
that is correct. To cover my statement of AMD being the first to market
with 64bit, AMD launched the first 64bit processor onto the market with
the Opteron in 2003 (PC and server based), Intel followed a year later
with the PC based Pentium 4F and Pentum D, and in 2006 with the server
Itanium with IA-64 code.
Regards
Andrew Brown
On 28/07/2013 12:14 PM, Andrew Brown wrote:
Yes under a laymans's terminology, and Linux devs seem to still use
i586 and i686 in labelling pices of software, to explain the chip the
software code can run on. Intel dropped that chip naming convention
after the last i486, due to some claimed patent issues of other
competitors using similar naming conventions, which they tried to
bring to court, but never succeeded.
The Pentium (part of the Greek word "pente" meaning 5, for Intel their
5th generation of processors) was going to be named the i586, but with
the court failure mention above, Intel went to names such as Pentium,
and the P5, P6 naming convention etc. In using the x86 (or loosely and
incorrectly x32) or x64 (also really incorrect as AMD has claim to the
first launched 64bit processors and systems, so is more correctly
known as AMD64) refers to the bitness/bit width of the processing data
path.
The latter I mentioned above is more applicable today to explain the
difference between 32bit and 64bit now, due to the fact that we have
both hardware and software running 64bit.
Regards
Andrew Brown
On 27/07/2013 04:06 AM, James Knott wrote:
Paul wrote:
Technically, the x86 indicates the architecture, the 64 indicates the
instruction set width. So x86_64 is a 64 bit chip, and the x86_32 is a
32 bit chip.
I thought 32 bit CPUs were referred to as i586..
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