camcorder vs photostat

camcorder

verb
  • To record using a 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. 

photostat

verb
  • To make such a photocopy of. 

noun
  • A photocopy made using a photocopier. 

  • Positive (black on white) or negative (white on black) reproduction of printed matter or artwork made on a photostat machine, which uses photographic paper instead of a transparent negative, and uses a prism to render the paper negative readable instead of reversed. 

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