As most computer monitors do not include integrated speakers, TV tuners, nor remote controls, external components such as a DTA box may be needed to use a computer monitor as a TV set. Modern computer monitors are mostly interchangeable with television sets and vice versa. In the 2000s, the typical display aspect ratio of both televisions and computer monitors has changed from 4:3 to 16:9. From the 1980s onward, computers (and their monitors) have been used for both data processing and video, while televisions have implemented some computer functionality. Originally, computer monitors were used for data processing while television sets were used for video. Monitors are connected to the computer via DisplayPort, HDMI, USB-C, DVI, VGA, or other proprietary connectors and signals. Before the mid- 2000s, most monitors used a CRT. The display in modern monitors is typically an LCD with LED backlight, having by the 2010s replaced CCFL backlit LCDs. A discrete monitor comprises a visual display, support electronics, power supply, housing, electrical connectors, and external user controls. A cathode-ray tube (CRT) computer monitorĪ computer monitor is an output device that displays information in pictorial or textual form.
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