frame buffer


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frame buffer

[′frām ‚bəf·ər]
(computer science)
A device that stores a television picture or frame for processing.

frame buffer

(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.

frame buffer

An area of memory used to hold the frame of data that is continuously being sent to the screen. The buffer is the size of the maximum image that can be displayed and may be a separate memory bank on the graphics card (display adapter) or a reserved part of regular memory. Sophisticated graphics systems are built with several memory planes, each holding one or more bits of the pixel. See video RAM. See also frame grabber.
References in periodicals archive ?
The card integrates four reprogrammable general-purpose digital I/O channels for system control, as well as a 2MB SDRAM frame buffer for storing single frames or video snapshots of incoming video.
It can be used to place video data directly into host memory for video capture applications, or into a target video display frame buffer for video overlay applications.
The two-megabyte Level 3 cache can preload a graphics frame buffer or a video frame before it is required by the processor, enabling higher throughput and faster frame rates when accessing memory and I/O devices.