Qué (quién) es visual display unit - definición

ELECTRONIC VISUAL DISPLAY FOR COMPUTERS

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Visual Display Unit

<hardware> (VDU, or "video terminal", "video display terminal", VDT, "display terminal") A device incorporating a cathode ray tube (CRT) display, a keyboard and a {serial port}. A VDU usually also includes its own display electronics which store the received data and convert it into electrical waveforms to drive the CRT. VDUs fall into two categories: dumb terminals and intelligent terminals (sometimes called "programmable terminals"). Early VDUs could only display characters in a single preset font, and these were confined to being layed out in a rectangular grid, reproducing the functionality of the paper-based teletypes they were designed to replace. Later models added graphics facilities but were still driven via serial communications, typically with several VDUs attached to a single multi-user computer. This contrasts with the much faster single bitmap displays integrated into most modern single-user personal computers and workstations. The term "Display Screen Equipment" (DSE) is used almost exclusively in connection with the health and safety issues concerning VDUs. {Working with VDUs - UK Heath and Safety Executive (http://hse.gov.uk/pubns/indg36.pdf)}. (2002-11-09)

visual display unit

¦ noun Computing, chiefly Brit. a device for displaying input signals as characters on a screen, typically incorporating a keyboard.

Computer monitor

A computer monitor is an output device that displays information in pictorial or text form. A monitor usually comprises a visual display, some circuitry, a casing, and a power supply.

https://en.wikipedia.org/wiki/Computer_monitor

Wikipedia

Computer monitor

A computer monitor is an output device that displays information in pictorial or textual form. A discrete monitor comprises a visual display, support electronics, power supply, housing, electrical connectors, and external user controls.

The display in modern monitors is typically an LCD with LED backlight, having by the 2010s replaced CCFL backlit LCDs. Before the mid-2000s, most monitors used a CRT. Monitors are connected to the computer via DisplayPort, HDMI, USB-C, DVI, VGA, or other proprietary connectors and signals.

Originally, computer monitors were used for data processing while television sets were used for video. From the 1980s onward, computers (and their monitors) have been used for both data processing and video, while televisions have implemented some computer functionality. In the 2000s, the typical display aspect ratio of both televisions and computer monitors has changed from 4:3 to 16:9.

Modern computer monitors are mostly interchangeable with television sets and vice versa. 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.

https://en.wikipedia.org/wiki/Computer monitor