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double buffering
(redirected from Double buffered)

    Also found in: Wikipedia 0.06 sec.

A programming technique that uses two buffers to speed up a computer that can overlap I/O with processing. Data in one buffer is being processed while the next set of data is read into the other one.

In streaming media applications, the data in one buffer is being sent to the sound card and/or display adapter, while the other buffer is being filled with more data from the source of the material (Internet, local server, etc.).

When video is displayed on screen, the data in one buffer is being filled while the data in the other is being displayed. Full-motion video is speeded up when the function of moving the data between buffers is implemented in a hardware circuit rather than being performed by software. See video accelerator.

Double Buffers
Two buffers are commonly used to speed up program execution. Data is processed in one buffer while data is written into or read out of the other.



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Software features include fast 3D graphics, photo-realistic texture mapping and blending, joined with high-speed, flicker-free double buffered animation and generation of portable C++ and OpenGL source code.
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The NVIDIA Quadro2 Pro solution delivers remarkable realism and image clarity from features such as: AGP 2X/4X support; 64MB DDR, 1920 x 1200 resolution in 24-bit double buffered mode with a 24-bit Z-buffer; stencil and overlay planes; alpha planes and hardware texturing.
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Quadro2 Pro provides many advanced workstation capabilities -- AGP 2X/4X support, 64MB DDR, 1920 x 1200 resolution in 24-bit double buffered mode with a 24-bit Z-buffer, stencil and overlay planes, and alpha planes and hardware texturing -- to deliver remarkable realism and image clarity.
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