Today almost every family has a computer. But few people know what a monitor is, how it works and what is incorporated in the principle of its action?
Monitor – this is a special device that serves to output images. There are two kinds of monitors: monochrome and color. Monochrome, accordingly, is to output the image using two colors. Today there are two mode of operation displays: text and graphics.
Look at what the monitor to work in text mode. It is a screen, which is conventionally divided into familiarity. As a rule, it is divided into 25 rows for 8 positions. Each familiarity-this is a field where certain symbols are displayed. All 256 characters. Among them, uppercase and lowercase letters, numbers and punctuation marks, special characters and graphical notation. If you use a monitor that is capable of reproducing the full spectrum of colors, each character cell may be highlighted in a special color text and background.
Now let's look at what the monitor to output graphics, unique images, and other. First, note that using the graphical monitor can display different lettering unique fonts and sizes. After all, this type displays an image using points, the more the image is better and clearer. Each point – this is the pixel. It can have its own color, and the total number of dots vertically and horizontally is called the screen resolution of the monitor.
Before making a purchase, you should understand that a matrix of the monitor. It is performed by different techniques, and its quality due to the pixel sizes (grains). The more pixels, the worse the quality of the mapping.
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Do Not miss the colors of the screen. The number of colors indicates the level of quality. According to individual technical characteristics of each computer, there are several modes of graphic representation: EGA, VGA, SVGA, LCD.
To monitor to specify one of these modes, the graphic accelerator of a personal computer must be equipped with sufficient memory. Today, the SVGA mode is not supported by all programs, but for normal works are installed additional drivers.
Monitor – this device, which may be of different sizes. Allocate 14 inch, 17 inch, 19 and 21 inch. Inches – is the length of the diagonal.
As already mentioned, another important detail when choosing a monitor is the size of a grain of the screen (pixel). To date, the optimal pixel size – 0,26-0,28 mm. If the monitor is selected grains are larger, it is necessary to use a special non-optical glasses, as these points are bad for the eyes.
Today, almost does not produce monitors based on CRT, increasingly available flat – LCD or plasma. This is the most popular technology, they are more compact, such monitors can be hung on the wall. The most popular manufacturers are considered to be LG, ViewSonic, Samsung, Sony and Panasonic.
We discussed what monitor and what are its main parameters. When you purchase should check the component and accompanying documentation.
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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."
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