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QVGA Quarter video graphics array

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QVGA stands for Quarter Video Graphics Array. It is a display resolution standard that was widely used in the early days of digital devices and computer systems. The term "quarter" refers to the fact that the resolution of QVGA is one-fourth the resolution of the VGA (Video Graphics Array) standard.

The QVGA resolution is typically defined as 320 pixels in width and 240 pixels in height. This means that the screen or image using QVGA resolution would have 320 horizontal lines, each consisting of 240 pixels stacked vertically.

QVGA was commonly employed in various devices such as mobile phones, personal digital assistants (PDAs), portable media players, and early digital cameras. Due to its relatively low resolution, QVGA was suitable for smaller screens and devices with limited graphical capabilities.

The aspect ratio of QVGA is 4:3, which means the width is four units and the height is three units. This aspect ratio was prevalent during the era when CRT (cathode ray tube) monitors were widely used.

With a resolution of 320x240 pixels, QVGA offered a relatively low pixel density compared to modern display standards. However, during its time, it was considered adequate for many applications, considering the limited graphical processing power and memory resources available in early digital devices.

QVGA displays were capable of rendering basic graphics, simple animations, and text. However, as technology advanced and demand for higher-quality visuals increased, QVGA was gradually phased out and replaced by higher-resolution standards such as VGA (640x480 pixels), SVGA (800x600 pixels), and subsequently, higher-resolution displays such as HD (High Definition) and UHD (Ultra High Definition).

In summary, QVGA (Quarter Video Graphics Array) is a display resolution standard that was widely used in early digital devices. It offered a resolution of 320x240 pixels, with a 4:3 aspect ratio, and was suitable for smaller screens with limited graphical capabilities. As technology progressed, higher-resolution standards replaced QVGA in most modern devices.