CPU vs PC

CPU

noun

  • The main computer case containing the central components of a personal computer. 

  • Any character or entity controlled by the game software. 

PC

noun

  • A personal computer, especially one similar to an IBM PC that runs Microsoft Windows (or, originally, DOS), usually as opposed to (say) an Apple Mac. 

  • A member of the Conservative Party of Canada. 

  • forty-nine (an allusion to a cartoon character, Police Constable 49) 

verb

  • To make politically correct. 

How often have the words CPU and PC occurred in a corpus of books? (source: Google Ngram Viewer )