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Lexikon

Pentium II

ref="module.php?name=Lexikon&file=search&eid=1&query=Intel Corporation">Intel Corporation' s successor to the {Pentium Pro}. The Pentium II can execute all the instructions of all the earlier members of the ref="module.php?name=Lexikon&file=search&eid=1&query=Intel 80x86">Intel 80x86 processor family. There are four versions targetted at different user markets. The ref="module.php?name=Lexikon&file=search&eid=1&query=Celeron">Celeron is the simplest and cheapest. The standard Pentium II is aimed at mainstream home and business users. The ref="module.php?name=Lexikon&file=search&eid=1&query=Pentium II Xeon">Pentium II Xeon is intended for higher performance business ref="module.php?name=Lexikon&file=search&eid=1&query=servers">servers. There is also a mobile version of the Pentium II for use in portable computers. All versions of the Pentium II are packaged on a special ref="module.php?name=Lexikon&file=search&eid=1&query=daughterboard">daughterboard that plugs into a card-edge processor slot on the ref="module.php?name=Lexikon&file=search&eid=1&query=motherboard">motherboard. The daughterboard is enclosed within a rectangular black box called a ref="module.php?name=Lexikon&file=search&eid=1&query=Single Edge Contact">Single Edge Contact (SEC) cartridge. The budget ref="module.php?name=Lexikon&file=search&eid=1&query=Celeron">Celeron may be sold as a card only without the box. Consumer line Pentium II' s require a 242-pin slot called ref="module.php?name=Lexikon&file=search&eid=1&query=Slot 1">Slot 1. The ref="module.php?name=Lexikon&file=search&eid=1&query=Xeon">Xeon uses a 330-pin slot called Slot 2. Intel refers to Slot 1 and Slot 2 as SEC-242 and SEC-330 in some of their technical documentation. The daughterboard has mounting points for the Pentium II ref="module.php?name=Lexikon&file=search&eid=1&query=CPU">CPU itself plus various support chips and ref="module.php?name=Lexikon&file=search&eid=1&query=cache">cache memory chips. All components on the daughterboard are normally permanently soldered in place. Previous generation ref="module.php?name=Lexikon&file=search&eid=1&query=Socket 7">Socket 7 motherboards cannot normally be upgraded to accept the Pentium II, so it is necessary to install a new motherboard. All Pentium II processors have ref="module.php?name=Lexikon&file=search&eid=1&query=Multimedia Extensions">Multimedia Extensions (MMX) and integrated Level One and Level Two cache controllers. Additional features include ref="module.php?name=Lexikon&file=search&eid=1&query=Dynamic Execution">Dynamic Execution and Dual Independent Bus Architecture, with separate 64 bit system and cache busses. Pentium II is a ref="module.php?name=Lexikon&file=search&eid=1&query=superscalar">superscalar CPU having about 7.5 million ref="module.php?name=Lexikon&file=search&eid=1&query=transistors">transistors. The first Pentium II' s produced were code named ref="module.php?name=Lexikon&file=search&eid=1&query=Klamath">Klamath. They were manufactured using a 0.35 micron process and supported ref="module.php?name=Lexikon&file=search&eid=1&query=clock rates">clock rates of 233, 266, 300 and 333 ref="module.php?name=Lexikon&file=search&eid=1&query=MHz">MHz at a ref="module.php?name=Lexikon&file=search&eid=1&query=bus">bus speed of 66 MHz. Second generation Pentium II' s, code named Deschutes, are made with a 0.25 micron process and support rates of 350, 400 and 450 MHz at a bus speed of 100 MHz. ref="http://www.intel.com/PentiumII/">Start . (1998-10-06)

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