computing vs silicon

computing

noun
  • The study of computers and computer programming. 

  • The process or act of calculation. 

  • The use of a computer or computers. 

silicon

noun
  • computing 

  • A nonmetallic element (symbol Si) with an atomic number of 14 and atomic weight of 28.0855. 

  • A single atom of this element. 

  • computer processor 

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