Digital cinema encompasses every aspect of the movie making process, from production and post-production to distribution and projection.
While digital cameras are nothing new, and post-production houses have been using digital equipment to edit and master movies and animation for some time, the all-digital distribution and projection of movies has only recently arrived to complete the chain.
A digitally produced or digitally converted movie is distributed to theaters via satellite, physical media, or fiber optic networks. The digitized movie is stored by a computer/server which "serves" it to a digital projector for each screening of the movie. More information available at: http://www.dlp.com