Multiprocessor
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A multiprocessor is a tightly coupled computer system having two or more processing units (multiple processors) each sharing main memory and peripherals, in order to simultaneously process programs.[1][2][3]
Sometimes the term multiprocessor is confused with the term multiprocessing.
While multiprocessing is a type of processing in which two or more processors work together to execute more than one program simultaneously, the term multiprocessor refers to the hardware architecture that allows multiprocessing.[4]