Computer Monitors (2013) EditComputer Monitors are the screens at which we look when using the computer. They are catagorized as a peripheral. These screens display the graphics (images) and text generated by the computer. It does the highly important job of displaying what was being processed by the hard drive and displayed with the help of the video (graphics) card . Monitors have varrying resolutions (number of displayed pixels). The resolution is constantly updated and changed, allowing for more pixels to be displayed with newer generations of computers and monitors. Pixels are small squares that display an array of colors, each pixel fitting a different color. Pixel count has been increased with newer monitors, to allow for more detail. The pixels are displayed and represented with an X/Y axis, X referring to the
height, or how many rows there are, the Y referring to the length, or how many columns there are. Older computers had very small resolution, close to 640x480 (for the first color computers (resolution has been even smaller for older computers)), while current computers have resolutions closer to 1800x1440, and even reaching to 8162x4608 (Specifically HD monitors known as 8K).
Older computer monitors had screens that were made up of cathode ray tubes (CRT), whereas most current monitors use liquid crystal displays (LCD). All laptop monitors/screens use LCD. An unofficial term for LCD is "flat screen" or "flat panel". LCD is currently in the process of replacing the less efficient, less detail-capable CRT.
(Interested in other parts of the computer? Go check out Optical Drives !)
In 1897, Cathode Ray Tube technology was created by a German scientist, Ferdinand Braun. This technology involved phosphors being activated by negative electrons, shot from pieces called cathodes. This sort of technology was useful, but shaky, and did not allow for much detail. Later on, in the 90's, Liquid Crystal Displays came around, being far slimmer in design, using far less power, and generating far less radiation. They did, however, have slower response times (amount of time it takes for a pixel to change color), which cause image lag, especially when playing games or watching movies.