What is Computer monitor?
[[Image:Monitor LG.jpg|A CRT monitor|thumb]] A '''computer monitor''' is an [[electronics|electronic]] device that shows pictures for [[computer]]s. Monitors often look like smaller televisions. The main difference between a monitor and a [[television]] is that a monitor does not have a television [[tuner]] to change channels. Monitors often have higher [[display resolution]] than televisions. A high display resolution makes it easier to see smaller letters and [[fine]] graphics. There are three types of computer displays: * The [[cathode ray tube|CRT]] monitor. These are big and heavy, and use a lot of desk space and [[electricity]]. It is the oldest technology used by monitors, and is based on the [[cathode ray]] tube technology that was developed for [[television]]. Monitors are made with better parts, which give a higher display resolution and picture sharpness than a television. This type of monitor is no longer popular. [[File:TFT LCD display Samsung SyncMaster 510N.jpg|right|thumb|A LCD flat panel is much thinner and lighter than monitors with a cathode ray tube.]] * The [[Liquid crystal display|LCD]] monitor, the most common kind of [[flat panel display]]. It is a newer technology than CRT. LCD monitors use much less desk space, are lightweight and use less electricity than CRT. They have been used for many years in the screens of [[laptop]] and [[notebook computer]]s. They also work as [[touch screen]]s in [[tablet computer]]s, [[mobile phone]]s, and other [[handheld]] technologies. ** An '''LED''' Monitor (short for [[Light Emitting Diode]]) or LED display is an LCD Monitor that uses [[light emitting diode]]s for backlighting. The first LCD Monitors used [[cold cathode fluorescent lamp]]s instead of LEDs to illuminate the screen. * In the early 21st century, [[video projector]]s are now used in many places, like [[movie theater|movie theaters]], to show large images. These use various technologies to make the image including LCDs and [[Digital light processing]] (DLP), which uses very small mirrors t