Wednesday, December 16, 2009

Printer

The printer is an output device that provides the user with the output in an acceptable form (Ref: - by Prof. Ramananda Chivite) In computers, a printer is a device that produces a hard copy (permanent human-readable text and / or graphics) of documents stored in electronic form, usually on physical print media such as paper or transparencies. Many printers are mainly used as local devices, and related printer cable or, in most newer printers, a USB cable to a computer that acts as a source document. Some printers, commonly known as network printers that have network interfaces (typically wireless or Ethernet), and can serve as a printed device for each user on the network. Personal printers are often designed to support local and network connected users simultaneously. Furthermore, some modern printers can directly interface to electronic media such as memory sticks or memory cards, or cameras, including digital cameras, scanners, printers are around, along with a scanner and / or a fax into a single unit, and can function as copiers. Printers that include non-printing features are sometimes called Multifunction Printers (MFP), multifunctional devices (MFD), or All-In-One (AIO). Most MFPs include printing, scanning and copying of their characteristics. A virtual printer is a piece of software user interface and API which resemble that of a printer driver, but that is unrelated to a physical printer to the computer. Printers are designed for low volume, short run print jobs require almost a year of establishment to obtain a paper copy of a document. However, printers are generally considered slow devices (30 pages per minute fast, cheap printers, and many consumers are much slower than that), and the cost per page is actually relatively high. However, this is offset by the ease of on-demand and management of project costs are more controllable than a solution to out-source. The type of course is the engine of choice for high-volume, professional publishing. However, as printers have improved in quality and performance, many jobs are done by professional printers have become by users on local printers; See desktop publishing. First computer printer in the world was the 19th century mechanically driven apparatus invented by Charles Babbage on the Difference Engine.

No comments:

Post a Comment