MicroProcessor

                                                            A silicon chip that contains a CPU. In the world of personal computers, the terms microprocessor and CPU are used interchangeably. 

                                             At the heart of all personal computers and most workstations sits a microprocessor. 

                                           Microprocessors also control the logic of almost all digital devices, from clock radios to fuel-injection systems for automobiles.

                                           A microprocessor incorporates the functions of a computer's central processing unit (CPU) on a single integrated circuit (IC).

                                          The microprocessor is a multipurpose. 

                                          programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and provides results as output. 

                                          It is an example of sequential digital logic,

                                          Microprocessors operate on numbers and symbols represented in the binary numeral system.

Before microprocessors, small computers had been implemented using racks of circuit boards with many medium- and small-scale integrated circuits. 

Microprocessors integrated this into one or a few large-scale ICs.

microprocessor capacity have since rendered other forms of computers almost completely obsolete (see history of computing hardware), with one or more microprocessors used in everything from the smallest embedded systems and handheld devices to the largest mainframes and supercomputers.