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Definition: Pentium II


The successor to the Pentium Pro from Intel. Pentium II refers to the CPU chip or the PC that uses it. Code-named Klamath, the Pentium II was a Pentium Pro with MMX multimedia instructions. Introduced in 1997 at clock rates of 233 MHz and 266 MHz, it used a 66 or 100MHz system bus and introduced the Single Edge Contact Cartridge (SECC). The Pentium II chip used variable power voltages. See Pentium and SECC.




The Chip Itself
Looking like an aerial view of a large city, this is a Pentium II CPU chip with 7.5 million transistors. (Image courtesy of Intel Corporation.)