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Definition - What does Resolution mean?

Resolution is a measure used to describe the sharpness and clarity of an image or picture and is often used as a metric for judging the quality of monitors, printers, digital images and a various other hardware and software technologies. The term is especially popular in the mobile industry for describing a mobile device's display capabilities, and also in the entertainment media to distinguish the visual quality of movies and to distinguish between high definition and standard definition movies.

Techopedia explains Resolution

Resolution is a broad term and may have different meanings when used in different fields of technology. In the computer and media industry, resolution refers mostly to display resolution and the number of picture elements (pixels or simply dots) that can be displayed both horizontally and vertically by a screen. Resolution in this case will then refer to how many pixels the display can produce horizontally (width) and vertically (height). This measure also applies to digital images.

For audio, resolution refers to the bit depth of a digital recording, or the number of information bits stored in the sample. This also correlates directly to the recording's quality. For printers, resolution points to the dots per inch (DPI) of the material the printer produces, which also indicates how small and fine the dots are. The higher the DPI, the sharper the printout will be.
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