artwork vs computer graphics

artwork

noun
  • The graphical elements to be included in a reproduced work. 

  • A painting, drawing, sculpture or other piece of creative, visual art. 

  • Artistic work. 

computer graphics

noun
  • The representation and manipulation of pictorial data by a computer. 

  • The various technologies used to create and manipulate such pictorial data. 

  • A sub-field of computer science which studies methods for digitally synthesizing and manipulating visual content. 

  • The images so produced. 

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