Intel(R) Pentium(R) refers to Intel(R) Pentium, which is Intel's Pentium series of CPUs. "R" refers to a registered trademark, and its full English name is "Register" ".

The Pentium processor is the fifth-generation microprocessor series released by Intel in October 1992. The product was officially launched on the market in March 1993.

After a series of development and optimization, the instruction execution speed of the Pentium processor has been five times faster than that of the 80486 processor, greatly improving the computer's running speed and capabilities.

The Pentium processor is fully compatible with Intel's previous processors, even the original 8086 processor. This allows users to continue to use their previous processors after upgrading the processor.

Extended information:

Defects of the Pentium processor

i586 program (this program also has some other names, such as Linux users call it f00f Program) is a cross-border attack method. The processor chip will crash because it cannot execute the illegal instructions sent by this program.

A user who downloads the program from a hacker site and runs it on a Pentium chip-based computer can see how it does this.

This program does not seem to exploit the weakness of floating point arithmetic in the Pentium CPU. It directly sends the wrong instructions to the CPU. There is no good solution to this kind of crash except manually resetting the computer.

Baidu Encyclopedia-Pentium