Why does x86 stands for 32bit OS


I often have seen 32bit OS being referred to x86 (i hope it is the x86 architecture). What is the significance of this 32bit and why is it related to x86.

Best Answer

Because they are based on the i386, i486, i586, or i686 architecture. AMD has always refereed to this as x86, I believe because i386 was trademarked by Intel (i is for Intel).

AMD however was the first to come up with a PC architecture for 64bit and called it AMD64 or EMT64. it beat out Intels IA64 (Itanium 64bit) architecture.

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