camcorder vs videocassette recorder

camcorder

noun
  • A camera recorder: a portable electronic device for recording images and audio on to a storage device, hence functioning as a camera and a recorder in a single unit. 

verb
  • To record using a camcorder. 

videocassette recorder

noun
  • An electronic device for recording and playing back television programs and movies (featuring visual images and sound) on a videocassette that can be attached to a television set. 

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