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Hi Les

I think to clarify, I found a Wikipedia entry of the timeline of ALL known 64bit processors. As you go down the timeline, it starts at the year 1961 for supercomputer 64bit processors system, and 64bit was only ever available for mainframes and supercomputers.

But as you go down the timeline, and as I posted, the first successful 64bit processor to market was the AMD 64bit in 2003, and for the sake of no argument, the first in the x86 CISC (Complex Instruction Set) class of processors for desktops etc. Intel did not fair so well, and actually as stated in this timeline, cloned the AMD64 microcode and released their 64bit versions in 2004. The first Intel Itanium's failed.


Andrew Brown

On 28/07/2013 07:38 PM, Les Howell wrote:
On Sun, 2013-07-28 at 08:23 -0400, James Knott wrote:
James Knott wrote:
Actually, I believe both the PowerPC and DEC Alpha were earlier.
I think the Intel Itanium also predated the AMD.

That may depend on your definition of a processor.  I had a math chip
for my 386 a long time ago that was 80 bit internal floating point from

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