What does linux i686 mean?

linux i686 refers to Pentium Pro and subsequent Intel IA32 CPUs, also known as P6 series processors; i686 is only a subset of i386, and i386 is suitable for all 32-bit CPUs and vias from Intel and AMD A 32-bit CPU using x86 architecture.

#The operating environment of this tutorial: linux5.9.8 system, Dell G3 computer.

linux i686 What does it mean?

i686 refers to Pentium Pro and subsequent Intel IA32 CPUs, which is what we usually call the P6 series processors. i686 is just a subset of i386. The supported CPUs start from Pentium 2 (686), and previous models are not supported. It is related to the instruction set of the CPU. I means compatible with Intel's instruction set, and the following number refers to the classification of the CPU.

i386: Intel 386 (old 386 machine, also generally refers to the IA32 system CPU)

i486: Intel 486

i586: Intel 586 (Pentium, K6 level CPU )

i686: Intel 686 (Pentium II, Pentium III, Pentim 4, K7 level CPU)

The hard disk interface is the connection component between the hard disk and the host system. It functions between the hard disk cache and the host system. Transfer data between memories. Different hard disk interfaces determine the connection speed between the hard disk and the computer. In the entire system, the quality of the hard disk interface directly affects the speed of program running and the performance of the system. Hard disk interfaces are divided into four types: IDE, SATA, SCSI and Fiber Channel

The difference between i386/i686/x86-64 in Linux distributions

i386 is suitable for intel And all AMD 32-bit CPUs and via 32-bit CPUs using x86 architecture. Intel platforms include 8086, 80286, 80386, 80486, Pentium series (1.2.3.4), Celeron series, Pentium D series, centrino P-M, Core duo, etc.

x86_64 is suitable for Intel Core 2 Duo, Centrino Core 2 Duo, Xeon and AMD Athlon64/x2, Sempron64/x2, Duron64 and other 64-bit CPUs using x86 architecture.

i686 is just a subset of i386. The supported CPUs start from Pentium 2 (686), and previous models are not supported.

6. What is the difference between x86 and x86-64?

x86: 32-bit Intel processor in a general sense

x86_64: 64-bit Intel processor in a general sense

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