Justplainme: Argentic is the normal photo -> you put a 35 mm film in your camera, take your photos and bring it to the store. You receive photos on paper. Argentic is the chimic system to develop the film. It causes many pollution because of the chemicals used.
Numeric is the new system: you have an electronic camera, you takes photos, transform it in informatic file (*.jpg) and save it on a electronic memory. You can 1) bring it to the store and receive photos on paper, or 2) save it on your computer, retouch it, transform it, ... and put it on Caedes or send by mail to the store and receive photos on paper... :-)