"higher resolution). Closer spacing produces a sharper image (as there are more dots in a given area). However, other factors may affect image quality, including: The exact difference between horizontal and diagonal dot pitch varies with the design of the monitor (see pixel geometry and widescreen), but a typical entry-level 0.28 mm (diagonal) monitor has a horizontal pitch of 0.24 or 0.25 mm, a good quality 0.26 mm (diagonal) unit has a horizontal pitch of 0.22 mm. The above dot pitch measurement does not apply to aperture grille displays. Such monitors use continuous vertical phosphor bands on the screen, so"
"Dots per inch Dots per inch (DPI, or dpi) is a measure of spatial printing, video or image scanner dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch (2.54 cm). Similarly, the more newly introduced dots per centimeter (d/cm or dpcm) refers to the number of individual dots that can be placed within a line of 1 centimeter (≈ 0.393 in). Monitors do not have dots, but do have pixels; the closely related concept for monitors and images is pixels per inch or PPI. Many resources, including"
"Dot matrix A dot matrix is a 2-dimensional patterned array, used to represent characters, symbols and images. Every type of modern technology uses dot matrices for display of information, including mobile phones, televisions, and printers. They are also used in textiles with sewing, knitting, and weaving. An alternate form of information display using lines and curves is known as a vector display, was used with early computing devices such as air traffic control radar displays and pen-based plotters but is no longer used. Electronic vector displays were typically monochrome only, and either don't fill in the interiors of closed vector"
"monitors can display anywhere from 16 to over 1 million different colors. A monochrome monitor is a type of CRT computer display which was very common in the early days of computing, from the 1960s through the 1980s, before color monitors became popular. The most important component in the monitor is the picture tube. CRT basically means ""cathode ray tube"". The CRT use cathode-ray-tube technology to display images, so they are large, bulky and heavy like conventional or old televisions, because old televisions also used the CRT technology only to display the television films or television images. To form the"
"Dot-matrix display A dot-matrix display is a display device used to display information on machines, clocks, railway departure indicators and many other devices requiring a simple display device of limited resolution. The display consists of a dot matrix of lights or mechanical indicators arranged in a rectangular configuration (other shapes are also possible, although not common) such that by switching on or off selected lights, text or graphics can be displayed. A dot matrix controller converts instructions from a processor into signals which turns on or off lights in the matrix so that the required display is produced. Common sizes"
"White Dot White Dot is an anti-television organisation based in the UK. It encourages people to not watch television, and also to switch off televisions in cafés and pubs with devices such as the TV-B-Gone. It also organises what it calls ""zocalo"" (a Mexican term for a town square) events where people are requested to turn off their televisions, go outside and talk to their neighbours. The organisation is named after the white dot that appeared in the middle of old CRT television screens when switched off—as the capacitors discharged, the cathode ray would continue to emit electrons although no"
"Computer monitor A computer monitor is an output device that displays information in pictorial form. A monitor usually comprises the display device, circuitry, casing, and power supply. The display device in modern monitors is typically a thin film transistor liquid crystal display (TFT-LCD) with LED backlighting having replaced cold-cathode fluorescent lamp (CCFL) backlighting. Older monitors used a cathode ray tube (CRT). Monitors are connected to the computer via VGA, Digital Visual Interface (DVI), HDMI, DisplayPort, Thunderbolt, low-voltage differential signaling (LVDS) or other proprietary connectors and signals. Originally, computer monitors were used for data processing while television receivers were used for"
"Flip-disc display The flip-disc display (or flip-dot display) is an electromechanical dot matrix display technology used for large outdoor signs, normally those that will be exposed to direct sunlight. Flip-disc technology has been used for destination signs in buses across North America, Europe and Australia, as well as for variable-message signs on highways. It has also been used extensively on public information displays. A few game shows have also used flip-disc displays, including Canadian shows like ""Just Like Mom"", ""The Joke's on Us"" and ""Uh Oh!"", but most notably the American game show ""Family Feud"" from 1976 to 1995. The"
"Chroma dots Chroma dots are visual artifacts caused by displaying an unfiltered analogue color video signal on a black-and-white television or monitor. They are commonly found on black-and-white recordings of television programs originally made in color. Chroma dots were once regarded as undesirable picture noise, but recent advances in computer technology have allowed them to be used to reconstruct the original color signal from black-and-white recordings, providing a means to re-color material where the original color copy is lost. Analogue color video signals comprise two components: chrominance and luminance. The luminance component describes the brightness of each part of the"
"SSDs that use the older AHCI protocol. A visual display unit, computer monitor or just display, is a piece of electrical equipment, usually separate from the computer case, which displays visual images without producing a permanent computer record. A display device was usually a CRT in the 1980s, but by the 2000s, flat panel displays such as a TFT LCD had largely replaced the bulkier, heavier CRT screens. Multi-monitor setups are quite common in the 2010s, as they enable a user to display multiple programs at the same time (e.g., an email inbox and a word processing program). The display"
"Dot (film) Dot is a 2010 British animated short film created by Aardman Animations. It is a spot for the Nokia N8. University of California Berkeley professor Daniel Fletcher built a portable microscope which attaches to the Nokia N8 phone, for medical purposes. Nokia asked Aardman Animations to utilise both the microscope and the phone to create a short. The entire film is shot using a Nokia N8. Marketing week explains: ""To create ’Dot’, Aardman's in-house production technology engineer, Lew Gardiner worked alongside the Physics Department at the University of Bristol to create their own CellScope production camera. Aardman used"
"of dot matrix displays: Other sizes include: Dot-matrix display A dot-matrix display is a display device used to display information on machines, clocks, railway departure indicators and many other devices requiring a simple display device of limited resolution. The display consists of a dot matrix of lights or mechanical indicators arranged in a rectangular configuration (other shapes are also possible, although not common) such that by switching on or off selected lights, text or graphics can be displayed. A dot matrix controller converts instructions from a processor into signals which turns on or off lights in the matrix so that"
"and the sharpness can be controlled by focusing the electron beam; whereas on a color monitor, each pixel is made up of three phosphor dots (one red, one blue, one green) separated by a mask. Monochrome monitors were used in almost all dumb terminals and are still widely used in text-based applications such as computerized cash registers and point of sale systems because of their superior sharpness and enhanced readability. Some green screen displays were furnished with a particularly full/intense phosphor coating, making the characters very clear and sharply defined (thus easy to read) but generating an afterglow-effect (sometimes called"
"in multiple colors through the use of alternating-intensity red, green, and blue phosphors, monochrome monitors have only one color of phosphor (""mono"" means ""one"", and ""chrome"" means ""color""). All text and graphics are displayed in that color. Some monitors have the ability to vary the brightness of individual pixels, thereby creating the illusion of depth and color, exactly like a black-and-white television. Typically, only a limited set of brightness levels was provided to save display memory which was very expensive in the '70s and '80s. Either normal/bright or normal/dim (1 bit) per character as in the VT100 or black/white per"
"on some monitors, known as ""long persistence"" monitors. These use the relatively long decay period of the phosphor glow to reduce flickering and eye strain. Monochrome monitor A monochrome monitor is a type of CRT computer monitor which was very common in the early days of computing, from the 1960s through the 1980s, before color monitors became popular. They are still widely used in applications such as computerized cash register systems, owing to the age of many registers. Green screen was the common name for a monochrome monitor using a green ""P1"" phosphor screen. Abundant in the early-to-mid-1980s, they succeeded"
"Quantum dot display A quantum dot display is a display device that uses quantum dots (QD), semiconductor nanocrystals which can produce pure monochromatic red, green, and blue light. ""Photo-emissive"" quantum dot particles are used in a QD layer which converts the backlight to emit pure basic colors; this improves display brightness and color gamut by reducing light losses and color crosstalk in RGB color filters. This technology is used in LED-backlit LCDs, though it is applicable to other display technologies which use color filters, such as white or blue/UV OLED. ""Electro-emissive"" or ""electroluminiscent"" quantum dot displays are an experimental type"
"Monochrome monitor A monochrome monitor is a type of CRT computer monitor which was very common in the early days of computing, from the 1960s through the 1980s, before color monitors became popular. They are still widely used in applications such as computerized cash register systems, owing to the age of many registers. Green screen was the common name for a monochrome monitor using a green ""P1"" phosphor screen. Abundant in the early-to-mid-1980s, they succeeded Teletype terminals and preceded color CRTs and later LCDs as the predominant visual output device for computers. Unlike color monitors, which display text and graphics"
"Cue mark A cue mark, also known as a cue dot, a changeover cue or simply a cue is a visual indicator used with motion picture film prints, usually placed on the right-hand upper corner of a frame of the film. Cue dots are also used as a visual form of signalling on television broadcasts. A pair of cue marks is used to signal the projectionist that a particular reel of a movie is ending, as most movies presented on film come to theaters on several reels of film lasting about 14 to 20 minutes each (the positive print rolls,"
"times less sensitive to blue in daylight conditions according to CIE luminosity function. Quantum dot display A quantum dot display is a display device that uses quantum dots (QD), semiconductor nanocrystals which can produce pure monochromatic red, green, and blue light. ""Photo-emissive"" quantum dot particles are used in a QD layer which converts the backlight to emit pure basic colors; this improves display brightness and color gamut by reducing light losses and color crosstalk in RGB color filters. This technology is used in LED-backlit LCDs, though it is applicable to other display technologies which use color filters, such as white"
"the simple case the display matrix can be just a matrix of code points (so named ""character pointer table""), but it usually stores for each character position not only a code, but also ""attributes"". In the case of raster scan output, which is the most common for computer monitors, the corresponding video signal is made by the ""character generator"", a special electronic unit similar to devices with the same name used in video technology. The video controller has two registers: scan line counter and dot counter, serving as coordinates in the screen dot matrix. Each of them must be divided"
"digit 0 with a dot in the centre seems to have originated as an option on IBM 3270 displays. Its appearance has continued with Taligent's command line typeface Andalé Mono. One variation used a short vertical bar instead of the dot. This could be confused with the Greek letter Theta on a badly focused display, but in practice there was no confusion because theta was not (then) a displayable character and very little used anyway. An alternative, the slashed zero (looking similar to the letter O except for the slash), was primarily used in hand-written coding sheets before transcription to"
"Pixel In digital imaging, a pixel, pel, dots, or picture element is a physical point in a raster image, or the smallest addressable element in an all points addressable display device; so it is the smallest controllable element of a picture represented on the screen. Each pixel is a sample of an original image; more samples typically provide more accurate representations of the original. The intensity of each pixel is variable. In color imaging systems, a color is typically represented by three or four component intensities such as red, green, and blue, or cyan, magenta, yellow, and black. In some"
"Smart Display In computing, Smart Display (originally codenamed Mira) was a Microsoft initiative to use a portable touchscreen LCD monitor as a thin client for PCs, connecting via Wi-Fi. Smart Display was announced in early 2002, released in early 2003 and discontinued in December 2003, having never achieved more than negligible market penetration. The Smart Display was a battery-powered 10"" or 15"" LCD monitor with a touchscreen (similar in size and shape to a Tablet PC), connecting to a PC over an 802.11b WiFi network, with input via ""Transcriber"" (similar to Graffiti) or a pop-up soft-keyboard for text entry, and"
"particular bulb would indicate the on/off state of a particular register bit inside the computer. This allowed the engineers operating the computer to monitor the internal state of the machine, so this panel of lights came to be known as the 'monitor'. As early monitors were only capable of displaying a very limited amount of information and were very transient, they were rarely considered for program output. Instead, a line printer was the primary output device, while the monitor was limited to keeping track of the program's operation. As technology developed engineers realized that the output of a CRT display"
"history & evolution we always have seen a sort of display device on the computer. A display device is the most common form of output device. It presents output visually on computer screen. The output appears temporarily on the screen and can easily altered or erased, it is sometimes referred to as soft copy also. The display device for a desktop PC is called ""Monitor"". With all-in-one PCs, notebook computers, hand held PCs and other devices; the term ""display screen"" is used for the ""display device"". The display devices are also used in home entertainment systems, mobile systems, cameras and"
"the dot used as a thousands separator (though a thin space is sometimes used for the latter purpose, especially in technical writing, regardless what the decimal separator is). In computing, the dot is used as a delimiter more broadly, as site and file names (""wikipedia.org"", ""192.168.0.1."" ""document.txt""), and serves special functions in various programming and scripting languages. Guillemets sometimes called French quotation marks, are relatively uncommon in English, but are sometimes used as a form of quotation mark. The question mark is used to mark the end of a sentence which is a question. Quotation marks are used to mark"
"Desktop metaphor In computing, the desktop metaphor is an interface metaphor which is a set of unifying concepts used by graphical user interfaces to help users interact more easily with the computer. The desktop metaphor treats the computer monitor as if it is the user's desktop, upon which ""objects"" such as documents and folders of documents can be placed. A document can be opened into a window, which represents a paper copy of the document placed on the desktop. Small applications called desk accessories are also available, such as a desk calculator or notepad, etc. The desktop metaphor itself has"
"a CRT. Commonly, the same laptop would be offered with an assortment of display options at increasing price points: (active or passive) monochrome, passive color, or active matrix color (TFT). As volume and manufacturing capability have improved, the monochrome and passive color technologies were dropped from most product lines. TFT-LCD is a variant of LCD which is now the dominant technology used for computer monitors. The first standalone LCDs appeared in the mid-1990s selling for high prices. As prices declined over a period of years they became more popular, and by 1997 were competing with CRT monitors. Among the first"
"font used. There were two commonly available competing display adapters: IBM Monochrome Display Adapter The Monochrome Display Adapter (MDA, also MDA card, Monochrome Display and Printer Adapter, MDPA) is IBM's standard video display card and computer display standard for the PC introduced in 1981. The MDA does not have any pixel-addressable graphics modes. It has only a single monochrome text mode (PC video mode 7), which can display 80 columns by 25 lines of high resolution text characters or symbols useful for drawing forms. Based on the IBM Datamaster's display system, the standard IBM MDA card is equipped with four"
"other departures from real-world equivalents are violations of the pure paper paradigm. Desktop metaphor In computing, the desktop metaphor is an interface metaphor which is a set of unifying concepts used by graphical user interfaces to help users interact more easily with the computer. The desktop metaphor treats the computer monitor as if it is the user's desktop, upon which ""objects"" such as documents and folders of documents can be placed. A document can be opened into a window, which represents a paper copy of the document placed on the desktop. Small applications called desk accessories are also available, such"
"image. Pixel In digital imaging, a pixel, pel, dots, or picture element is a physical point in a raster image, or the smallest addressable element in an all points addressable display device; so it is the smallest controllable element of a picture represented on the screen. Each pixel is a sample of an original image; more samples typically provide more accurate representations of the original. The intensity of each pixel is variable. In color imaging systems, a color is typically represented by three or four component intensities such as red, green, and blue, or cyan, magenta, yellow, and black. In"
"Dot plot (bioinformatics) In bioinformatics a dot plot is a graphical method for comparing two biological sequences and identifying regions of close similarity. It is a type of recurrence plot. One way to visualize the similarity between two protein or nucleic acid sequences is to use a similarity matrix, known as a dot plot. These were introduced by Gibbs and McIntyre in 1970 and are two-dimensional matrices that have the sequences of the proteins being compared along the vertical and horizontal axes. For a simple visual representation of the similarity between two sequences, individual cells in the matrix can be"
"each of its memory locations, corresponding to the binary digits (bits) 0 and 1. It exploited the positive or negative electric charge generated by displaying either a dash or a dot at any position on the CRT screen, a phenomenon known as secondary emission. A dash generated a positive charge, and a dot a negative charge, either of which could be picked up by a detector plate in front of the screen; a negative charge represented 0, and a positive charge 1. The charge dissipated in about 0.2 seconds, but it could be automatically refreshed from the data picked up"