CPU vs calculator

CPU

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

  • Any character or entity controlled by the game software. 

calculator

noun
  • A person who calculates (in the sense of scheming). 

  • A mechanical or electronic device that performs mathematical calculations. 

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