Photo comes from the Greek term photos light and graphein drawing. Photographic equipment includes various ways of producing permanent images on sensitive surfaces by photochemical action of light or other forms of radiation or the more recent techniques of imaging by electronic means.
In today's society plays a very important photo as informational environment as a tool in the service of science and industry, as an art form or a widespread hobby. It is essential in business and industry, being used in advertising, documentary, photojournalism and many other areas.
