QVGA
Similar Terms: qVGA
QVGA is the acronym for >Quarter Video Graphics Array, used to describe a screen display with 320×240 display Resolution. QVGA displays are most often used in mobile devices and are often in a portrait (as opposed to landscape) orientation (i.e., taller than they are wide, 240×320).
The name comes from having a >Quarter of the 640×480 maximum Resolution of the original >VGA display technology introduced by IBM in 1987.
While QVGA is a lower Resolution compared to >VGA, at higher resolutions the "Q" prefix commonly means quad(ruple) or four times higher display Resolution (e.g., QXGA is 4 times higher Resolution than XGA). To distinguish >Quarter from quad, lowercase "q" is sometimes used for "quarter" and uppercase "Q" for "quad", by analogy with >SI prefixes like m/M (milli/Mega) and p/P (pico/Peta) but this is not used consistently
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