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Display & Screens

A display or monitor is an electronic visual display for computers. Displays have a display device, a circuit, and a housing. The display device in modern refurbished notebook displays is typically a thin film transistor liquid crystal display (TFT-LCD). So, while older, used notebook displays use a thin plate, a cathode ray tube (CRT) about as deep as the screen size.

Originally computer monitors were used for data processing while television were used for entertainment. Since the 1980s, computers (and their monitors) have been used both for data processing as well as for entertainment, with the TV, some computer functionality has been implemented. The common aspect ratio of televisions and computer monitors has now changed from 4:3 to 16:10.

The history and development of displays.

Early electronic computers were equipped with a series of light bulbs , the state of each individual lamp " on / off " function of a certain register bits has been equipped with computers with one . The engineers were able to accomplish the operation of the computer to monitor the internal state of the machine , so this group was known of lights as " Monitor" . These monitors were only able to take a very limited amount of information. Therefore, these were rather temporarily out of use because they were rarely considered for the program output . Instead, a line printer was the primary output device while the monitor to use the program rather limited . Over time, this line of light was replaced by a cathode ray tube , which replaced the equivalent of several dozen light bulbs with a much more reliable display. When the technology was developed , it was recognized immediately that the output of a CRT display was much more flexible than a plate of incandescent lamps.

The cathode ray tube computer monitors the first used (CRT). Until the early 1980s, they were known as video display terminals and were physically connected to the computer and the keyboard. The monitors were monochrome, flickered and the picture quality was poor. In 1981, IBM introduced the Color Graphics Adapter. In order for a display to be made four colors at a resolution of 320 x 200 pixels, or represent two colors with a resolution of 640 x 200 pixels. In 1984, IBM introduced the Enhanced Graphics Adapter imagined, who was able to represent 16 colors and a resolution of 640 x 350. The CRT technology remained until the new millennium dominant in the PC monitor market.

The fact that the development was also not stand still in this technical sector expected, so that smaller and higher quality techniques were always designed to displays and monitors even more effective, energy-saving and to get with even better visual results. So it was only a matter of time have been developed to display which constituted the basis for notebooks and laptops, and got along with correspondingly low consumption, so that they could be powered by a laptop battery. After the invention of the touch screen it took was not more to this technique optimized so long that today's tablets respond to the most sensitive finger gesture, thereby convert the input commands of the user immediately and constitute the interface of the future.

Nowadays, existing technologies are replaced by newer and better. Meanwhile, there is a variety of offered devices of different manufacturers in different sizes and in all price ranges.
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