A computer printer is a device that produces hard copy (permanent human-readable text and/or graphics usually on paper) from data stored in a computer connected to it.
Most general-purpose printers currently sold to individuals and businesses are either laser printers or ink jet printers. Dye-sublimation printers are used by those who work with high-quality color graphics professionally.
A number of other sorts of printers are important for historical reasons, or for special purpose uses:
(Which of these describes your typical cash register?)
Some more generic terms used to classify printers:
Often the Razor and blades business model ia applied.
See also: PostScript, PCL, color
