Monitor

The monitor is a part of any computer system. It is a visual communication channel with all applications and has become a vital component in determining the overall quality and ease of use of the computer. Wrong choice and use of it can not only ruin the pleasure of working with a computer, but also negatively affect the eyesight. To properly select, configure and use the monitor, you need to understand the differences between the models and understand the meaning of some important technical characteristics.

The monitor is a part of any computer system

A modern monitor consists of a screen (display), a power supply, control cards and a case. Information for display on the monitor comes from the electronic device that forms the video signal (in the computer - video card). In some cases, a TV can be used as a monitor.

Today, each monitor can be attributed to one of two types: conventional - on a CRT tube, taking up a lot of space on the desktop, and a liquid crystal panel (LCD, TFT monitor) - flat and elegant, one a kind able to decorate any room.

The most important characteristic that characterizes any monitor is the screen size diagonally. The size is measured in inches and can be 14, 15, 17, 18, 19, 20 and 21 inches. A monitor with a large size allows you to set a higher resolution. The higher the resolution, the more information is displayed on the screen. The optimal size for a home computer is now considered to be 17 inches. This size allows you to work comfortably with office programs, visual programming environments, with Internet programs, etc. Screens 14 and even 15 inches are a thing of the past.

The monitor has another important characteristic - it's resolution, which means the density of the image displayed on the screen. The resolution is determined by the number of pixels along the same line and the number of horizontal lines. The VGA monitor with a resolution of 640x480 pixels has 640 points along each line and 480 lines deployed on the screen. The higher the resolution, the more information is displayed on the monitor. In the maximum resolution mode, as a rule, you can not work - too small. But the maximum resolution is one of the most important parameters for assessing monitor quality. The higher the maximum resolution, the better the monitor.

Personal computers usually work with one monitor, but there are video adapters that allow you to connect more than one monitor to one PC, in addition, usually more than one video adapter can be installed in the PC. Most modern laptops have, in addition to the built-in LCD-display, a connector for connecting an external monitor, which allows you to expand the workspace or duplicate the image from the LCD-display.

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