Before revision: A photoplotter is an specialized electro-mechanical-optical machine that exposes a latent image on a media , usually high-contrast monochromatic (black-and-white) photographic film, using a light source under computer control.
After revision: A photoplotter is a specialized electro-opto-mechanical machine that exposes a latent image on a medium , usually high-contrast monochromatic (black-and-white) photographic film, using a light source under computer control.