Věřím, že pro některé, co to nepochopili, to upraví.

V textu to je, ale v nadpise ne, byť by se to tam vešlo. Ale asi by to nevypadalo tak bulvárně, teď se všichni zhrozí že co to Red Hat vyvádí a kliknou :-)

http://cdn.iwastesomuchtime.com/October-18-2011-20-12-49-DoubleFacePalm.jpg

The instruction set architecture has twice been extended to a larger word size. In 1985, Intel released the 32-bit 80386 (later known as i386) which gradually replaced the earlier 16-bit chips in computers (although typically not in embedded systems) during the following years; this extended programming model was originally referred to as the i386 architecture (like its first implementation) but Intel later dubbed it IA-32 when introducing its (unrelated) IA-64 architecture.

In 1999-2003, AMD extended this 32-bit architecture to 64 bits and referred to it as x86-64 in early documents and later as AMD64. Intel soon adopted AMD's architectural extensions under the name IA-32e, later using the name EM64T and finally using Intel 64. Among these five names, the original x86-64 is probably the most commonly used,[citation needed] although Microsoft and Sun Microsystems also use the term x64, while many Linux distributions also use the "amd64" term.

Nicméně vše to je součástí aktuální podoby instrukční sady x86, naposledy rozšířené o AVX2, FMA3, TSX, BMI1 a BMI2, tedy řekne-li se x86, je míněna sada jako CELEK.

No hej, lenze wono se to x86-64 skracuje na x64 a x86-32 na x86. Potom tu mame absolutne nelogicky pasvil:

x86 pre oznacenie 32bit SW/OS
x64 pre oznacenie 64bit SW/OS