A processor is a high density integrated circuit designed for digital computing purposes. It is the brain of a computing device where processing of data in binary form, number crunching and execution of the instructions takes place. It can be a general purpose processor like the CPUs used in microcomputers or an application specific dedicated processor like Graphics Processing Unit in a graphics card or a Network processor in routers or a DSP. It is made up of millions of transistors interconnected together in different configurations to form the logic circuitry which performs all operations.
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