What is the system i686 in centos?

In centos, i686 represents a 32-bit system; i686 is a subset of i386, and i386 is usually used as a general term for Intel 32-bit microprocessors. i386 is widely applicable to all processors above 80386 kind of CPU, and i686 only corresponds to P6 and above level CPUs.

The operating environment of this article: centos 6.4 system, Dell G3 computer.

What kind of system is i686 in centos?

The difference between i386/i686/x86-64 in the distribution version:

i386 is used to handle 32-bit systems, i686 is i386 The next episode; x86-64 is used to handle 64-bit systems.

The respective meanings of i386/i686/x86-64 in Linux distributions:

1. i386 is usually used as a collective name for Intel (Intel) 32-bit microprocessors;

2. A subset of i386 includes i686, which is suitable for Pentium Pro and Athlon with K7 architecture;

3. x86-64, also known as "AMD64" or "x64", is A 64-bit computer processor architecture. It is based on the existing 32-bit x86 architecture and was developed by AMD.

To summarize: i386 corresponds to a 32-bit system, and i686 is a subset of i386. i686 only corresponds to CPUs of P6 and above levels, while i386 is widely applicable to various CPUs above 80386; x86_64 Mainly 64-bit systems.

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