CPU vs NPC

CPU

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

  • Any character or entity controlled by the game software. 

NPC

noun
  • A person with no ability to think for themselves; a sheeple (originally referring to opponents of former US President Donald Trump). 

verb
  • To act as an NPC (“non-player character”) in a game. 

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