Output Device Essay

Published: 2020-02-16 14:01:47
316 words
2 pages
printer Print
essay essay

Category: Printing

Type of paper: Essay

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What are OUTPUT DEVICES?
Output devices are hardware devices that display or present information to the user or other people. The monitor, printer and the speaker are one of the examples.

PRINTER
It is a computer device that produces a permanent copy on paper of information from the computer. There are several kinds of printers: ink jet, dot-matrix and laser jet printers.

DOT MATRIX PRINTER
Prints by hammering or striking an ink-soaked cloth ribbon against a paper. The advantage of this kind of printer is that it can easily create carbon copies because of the impact action of the printing process. The cost per page of printing is relatively cheap.

INK JET PRINTER
The ink comes form a cartridge of liquid ink and this printer is simply black and white or in full color.

LASER JET PRINTER
It produces high quality prints or graphics on paper. Color and black and white printing is available. It is based on the principle of electrostatic printing and photography wherein the source of ink is a toner.

PLOTTER
It comes in 2 types: pen plotter and electrostatic. Pen plotter is a vector graphics printing device which operates by moving a pen over the surface of paper. It is usually used for large printing requirements of CAD drawings of houses, buildings, cars, airplanes and others. It is also used for vinyl and plastic used for billions and posters.

THERMAL PRINTERS
Produce prints on thermal paper by selective heating wherein heated areas turn black creating an image. It is mostly used in groceries and department stores. They print faster and quieter than dot matrix.

HEADPHONE
It is a small speaker with a way to hold them close to the ears of the user. The headphone allows the user to listen music and sounds all alone.

DATA PROJECTOR
It displays computer information on big screen so that many will able to see the show.

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