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Central processing unit

electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions and coordinates the other components

Pronunciation
/ˈsɛntrəl ˈprɑsɛsɪŋ ˈjunət/
/ˈsɛntrəl ˈprəʊsɛsiŋ ˈjuːnɪt/