electronica vs gadgetry

electronica

noun
  • Electronic items in general. 

  • Any of a wide range of electronic music genres. 

  • The data trail of an individual on the public internet. 

gadgetry

noun
  • A gadget. 

  • machines, technology 

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