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The central processing unit (CPU) is the main IC chip on yourcomputer’s motherboard. They come in different shapes, sizes andpackages. Older CPUs came in the DIP format, and some 286s and early386s were QSOPs, but what you’ll see the most are the flat, square PGA orSPGA chips.CPU is considered the “brain” of your computer. It controls anddirects all the activities of the computer, transmitting, receiving andprocessing data constantly. But like the “brain” of any project or 36organization, it relies very heavily on its support group and advisors. Thereare a lot of factors involved that are related to the CPU and have an effecton the speed and performance of your machine. Some of these factorsinclude:a) Whether there’s a math coprocessor present and if it’s internal orexternal.b) The clock speed of the system and of the CPU. The amount ofinternal cache and external cache available.c) The bus architecture or supporting circuitry on the motherboard.
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