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A flat-panel display (FPD) computer monitor A cathode-ray tube (CRT) 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.
This chart shows the most common display resolutions, with the color of each resolution type indicating the display ratio (e.g., red indicates a 4:3 ratio).
Front and rear views of the TVM MD-3 cathode-ray tube monitor (Enhanced Graphics Adapter era). Note the DE-9 connector, cryptic mode switch, contrast and brightness controls at front, and the V-Size and V-Hold knobs at rear, which allow the control of the scaling and signal to CRT refresh rate synchronization respectively.
Some computers came with a built-in RF modulator to allow connection to the TV receiver antenna terminals; others output composite video for use with a free-standing monitor or external RF modulator. Still others had built-in or proprietary monitors. Often a composite video monitor (monochrome or color) would be substituted for the family TV.
Nixie tubes, LED display and VF display, top to bottom Display board at Frankfurt (Main) Hauptbahnhof (2005). A display device is an output device for presentation of information in visual [1] or tactile form (the latter used for example in tactile electronic displays for blind people). [2]
Some common aspect ratios for computer displays. 4:3 is an old non-widescreen monitor standard, also used in some tablet computers. The first popular widescreen ratio for computer displays was 16:10, and 16:9 has been the most common ratio since 2012.
An IBM computer with a green monochrome monitor Early Nixdorf computer with an amber monitor. A monochrome monitor is a type of computer monitor in which computer text and images are displayed in varying tones of only one color, as opposed to a color monitor that can display text and images in multiple colors. They were very common in the early ...
CRTs were the single most popular display technology used in television sets and computer monitors for over half a century; it was not until the 2000s that LCDs began to gradually replace them. A derivative of CRTs were storage tubes , which had the ability to retain information displayed on them, unlike standard CRTs which need to be refreshed ...