Frame buffer

(Computers) temporary memory that stores frames of graphic images not currently being displayed on-screen

The framebuffer is a video output device that drives a video display from a memory buffer containing a complete frame of data. The information in the buffer typically consists of color values for every pixel (point that can be displayed) on the screen. Color values are commonly stored in 1-bit monochrome, 4-bit palletized, 8-bit palletized, 16-bit highcolor and 24-bit truecolor formats. An additional alpha channel is sometimes used to retain information about pixel transparency. The total amount of the memory required to drive the framebuffer is dependent on the resolution of the output signal, as well as the color depth and palette size.
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Noun
1. (computer science) a buffer that stores the contents of an image pixel by pixel
(hypernym) buffer, buffer storage, buffer store
(classification) computer graphics

<hardware> Part of a video system in which an image is stored, pixel by pixel and which is used to refresh a raster image. The term "video memory" suggests a fairly static display whereas a frame buffer holds one frame from a sequence of frames forming a moving image.
Frame buffers are found in frame grabbers and time base correction systems, for example.
(1997-10-03)

frame buffer
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