Pentium II
Pentium II
(processor)The Pentium II can execute all the instructions of all theearlier members of the Intel 80x86 processor family. Thereare four versions targetted at different user markets. TheCeleron is the simplest and cheapest. The standard PentiumII is aimed at mainstream home and business users. ThePentium II Xeon is intended for higher performance businessservers. There is also a mobile version of the Pentium IIfor use in portable computers.
All versions of the Pentium II are packaged on a specialdaughterboard that plugs into a card-edge processor slot onthe motherboard. The daughterboard is enclosed within arectangular black box called a Single Edge Contact (SEC)cartridge. The budget Celeron may be sold as a card onlywithout the box. Consumer line Pentium II's require a 242-pinslot called Slot 1. The Xeon uses a 330-pin slot calledSlot 2. Intel refers to Slot 1 and Slot 2 as SEC-242 andSEC-330 in some of their technical documentation. Thedaughterboard has mounting points for the Pentium II CPUitself plus various support chips and cache memory chips.All components on the daughterboard are normally permanentlysoldered in place. Previous generation Socket 7motherboards cannot normally be upgraded to accept the PentiumII, so it is necessary to install a new motherboard.
All Pentium II processors have Multimedia Extensions (MMX)and integrated Level One and Level Two cache controllers.Additional features include Dynamic Execution and DualIndependent Bus Architecture, with separate 64 bit system andcache busses. Pentium II is a superscalar CPU having about7.5 million transistors.
The first Pentium II's produced were code named Klamath.They were manufactured using a 0.35 micron process andsupported clock rates of 233, 266, 300 and 333 MHz at abus speed of 66 MHz. Second generation Pentium II's, codenamed Deschutes, are made with a 0.25 micron process andsupport rates of 350, 400 and 450 MHz at a bus speed of 100MHz.
http://intel.com/PentiumII/.
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 |
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| 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.) |