Before revision: A photoplotter is an 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: specializedA photoplotter is an 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.