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This article mainly deals with the microprocessor chip which is the computers brain Thiscomputer chip is responsible for the majority of the computers functions its commonly referredto as the Central Processing Unit CPU It receives and executes your instructions anddetermines if your computer understands software written for a Personal Computer PC or aMacintosh MAC The CPU chip size is small about half the size of a business card and just assmall as your thumbnail Intel is the leading manufacturer of microprocessor for IBM PCs alsoother companies manufacture them also However Apple IBM and Motorola have combined tocreate a power chip designed to be used in IBM PCs and Macintosh computers However Intelmicroprocessors are as follows 8088 8086 80286 80386 80486 and the Pentium The prefix 80is commonly dropped Then we look at the CPU package dealing with the electronic circuits Thischip is made of silicon containing numerous tiny transistors with tiny wire protruding from it Thechip is encase in black plastic and sits on the motherboard which contains all of the computerscircuitry Microprocessors have all different kinds of internal processor speed commonly knownas clock speed This represents the number of clock cycles a chip can produce per second andhow quickly the CPU can execute commands The speed is measured in megahertz MHz forexample 25MHz equals to 25 million clock cycles per second The CPU also contains the databusa wire across of it that moves the information Which is measured in bits smallest piece ofinformation These chips are compared by the Intel Comparative Microprocessor PerformanceICOMP They compare a number of industry standards to determine the power of differentCPUs Nevertheless a breakthrough in the 486 series chips surfaced Intel offered the 486DX in1989 better than 386 amore faster CPU with clock speeds up to 33MHz including 12 milliontransistors compared to the 386s and also offered a math coprocessor The drawbacks was it wasto expensive for the common person In 1991 Intel came up with the 486SX with
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