A unit in which wavelengths of light and other radiant energy are expressed. One nanometer is one-billionth of a meter.
Film containing an image which the values of the original are reversed so that the dark areas in the subject appear light on the film and vice versa.
Two or more computers which are linked and share resources to perform related tasks. Groups of computers that are connected to each other by communications lines to share information and resources.
Paper made mostly from groundwood pulp and small amounts of chemical pulp; used for printing newspapers.
An electronic device like a copier, laser or ink-jet printer that creates images on a surface without contacting it.