Examples of Output Devices

The output devices are those devices that provide computers with the indispensable function of communicating information to the user after it has been processed by him. For example: monitor, speakers, printer.

The presentation of data After being processed, in any of its forms, it is carried out by this class of devices that will be much more useful the more they can make the presentation of the work simple and practical.

The output devices, together with the input devices, constitute the group of peripherals that give true utility to computers.

At the same time that data processing systems evolved over time, these peripherals were endowed with major technological advances, currently allowing the use of computers to people with only a few years of life, when, remember, the first Computers were intended to be used only by people who were fully familiar with the commands and circuits in her.

Examples of output devices

1. Monitor
   In the output devices there is one par excellence, whose example perfectly synthesizes the history of this class of devices: the
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   monitor. Through a graphics card, the computer and the peripheral are connected, allowing the image of the processing to be observed on the monitor that is being carried out on the computer, being able through that image the user to have a notion of what is actually doing. The first monitors emerged in the early 1980s, and were monochromatic, just letting see texts. The following monitors, CGA Y EGA they were progressively adapting to the support of colors and graphics, and also increasing the pixel resolutions. The monitors Vga, created in 1987 by the business IBM, they were fundamental in order to incorporate a quantity of video memory, making the previous models obsolete. The most recent era in the history of monitors made them divided into two classes, according to the way in which the image is represented: the CRT are those that use cathode rays, drawing an image that sweeps the electrical signal, while the LCD They use a liquid crystal using substances that share the properties of solids and liquids at the same time.

1. Speakers
   Device through which the computer lets out sounds. They exist both for table and for the ear, commonly known as headphones. The functionality is the same and the volume can be adjusted from the computer.
2. Printer
   Peripheral used to present information on paper. It is the ideal complement to all the text or graphics procedures that the PC has, since the Printer is what takes all that work to the dimension of physical objects, beyond the computer.

1. Plotter
   Graph plotter, functional for tools technical drawing or architecture.

1. Projector
   Through some programs, with projectors you can enlarge the monitor image and make it visible to large groups of people.

1. CD / DVD
   Although they are not peripheral devices, and they are not only output devices (well simultaneously functions as an input device) in fact, information can be carried there processed by the PC.

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