High Quality Content by WIKIPEDIA articles! In computers, a printer driver or a print processor is a piece of software that converts the data to be printed to the form specific to a printer. The purpose of printer drivers is to allow applications to do printing without being aware of the technical details of each printer model. Printer drivers should not be confused with print spoolers, that queue print jobs and send them to printer one after the other. On UNIX systems and other systems which use the Common Unix Printing System, such as Mac OS X, printer drivers are typically implemented as filters. They are usually named the front end of the printing system, while the printer spoolers constitute the back end. Backends are also used to determinate the available devices. On startup, each backend is asked for a list of devices it supports, and any information that is available.

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