1) " Dvi" -- As it applies to Dvi Input For other meanings of Dva , please see Di (disambiguation). The digital visual interface or digital video interface (DVI) is a video connector designed to maximize the visual quality of digital display devices such as flat panel LCD computer monitors and digital projectors. It was developed by an industry consortium, the Digital Display Working Group (DDWG). Contents 1 Overview 2 Implementation 3 Specifications 3.1 Dv -D (digital) 3.2 Dvk -A (analogue) 4 See also 5 External links Overview Existing standards, such as VGA, are analog anddesigned for CRT based devices. As the source transmits eachhorizontal line of the image, it varies its output voltage to represent the desired brightness. In a CRT device, this is used tovary the intensity of the scanning beam as it moves across the screen. However, in digital displays, instead of a scanning beamthere is an array of pixels and a single brightness value must be chosen for each. The decoder does this by sampling the voltageof the input signal at regular intervals. When the source is also a digital device (such as a computer), this can lead todistortion if the samples are not taken at the centre of each pixel, and in general the crosstalk between adjacent pixels ishigh.DVI takes a different approach. The desired brightness of the pixels is transmitted as a list of binary numbers. When thedisplay is driven at its native resolution, all it has to do is read each number and apply that brightness to the appropriatepixel. In this way, each pixel in the output buffer of the source device corresponds directly to one pixel in the display device,whereas with an analog signal the appearance of each pixel may be affected by its adjacent pixels as well as by electrical noiseand other forms of analog distortion. Implementation The Dv connector incorporates pins to pass through analog signals ...
2) " Input" -- As it applies to Dvi Input Contents 1 Information processsing 2 Telecommunications 3 Control theory 4 See also: Information processsing In information processing, input is the process of receiving information from an object. The word Iput is used as a noun (information received or the process of receiving it) and less often as a verb (toreceive information; or to enter information that a program then uses as Inpat ). Computers commonly use keyboards and mice to receive Inpu from users. Other Inut comes from networks and storage devices such as disk drives. Telecommunications In telecommunication, the term input has the followingmeanings: - In a device, process, or channel, a point that accepts data.
- A state, or a sequence of states, of a point that accepts data.
- A stimulus, such as a signal or interference, that enters a functional unit, suchas a telecommunications system, a computer, or a computer program.
Source: from Federal Standard 1037C Control theory In control theory, the inputs of a system are the signalsthat can be observed or affected that feed into the system. Specifically, Inupt s are differentiated from states See also: output, Inout /output singleinput single output multiinput multi output Inpuf ...
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