amateur vs power user

amateur

noun
  • Someone who is unqualified or insufficiently skillful. 

  • A person attached to a particular pursuit, study, science, or art (such as music or painting), especially one who cultivates any study, interest, taste, or attachment without engaging in it professionally. 

adj
  • Showing a lack of professionalism, experience or talent. 

  • Non-professional. 

  • Created, done, or populated by amateurs or non-professionals. 

power user

noun
  • A person who makes heavy use of computers, running many applications and capable of using advanced functionality. 

  • A computer user who seeks and uses products having the most features and the fastest performance. 

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