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  2. Upper memory area - Wikipedia

    en.wikipedia.org/wiki/Upper_memory_area

    In DOS memory management, the upper memory area (UMA) is the memory between the addresses of 640 KB and 1024 KB (0xA0000–0xFFFFF) in an IBM PC or compatible. IBM reserved the uppermost 384 KB of the 8088 CPU 's 1024 KB address space for BIOS ROM , Video BIOS , Option ROMs , video RAM, RAM on peripherals, memory-mapped I/O , and obsoleted ROM ...

  3. Framebuffer - Wikipedia

    en.wikipedia.org/wiki/Framebuffer

    A framebuffer (frame buffer, or sometimes framestore) is a portion of random-access memory (RAM) [1] containing a bitmap that drives a video display. It is a memory buffer containing data representing all the pixels in a complete video frame . [ 2 ]

  4. Image and Scanner Interface Specification - Wikipedia

    en.wikipedia.org/wiki/Image_and_Scanner...

    An ISIS interface can run scanners at or above their rated speed by linking drivers together in a pipe so that data flows from a scanner driver to compression driver, to packaging driver, to a file, viewer, or printer in a continuous stream, usually without the need to buffer more than a small portion of the full image.

  5. Uniform memory access - Wikipedia

    en.wikipedia.org/wiki/Uniform_memory_access

    Uniform memory access (UMA) is a shared memory architecture used in parallel computers.All the processors in the UMA model share the physical memory uniformly. In an UMA architecture, access time to a memory location is independent of which processor makes the request or which memory chip contains the transferred data.

  6. DirectFB - Wikipedia

    en.wikipedia.org/wiki/DirectFB

    DirectFB (Direct Frame Buffer), now continued as DirectFB2, is a software library with a small memory footprint that provides graphics acceleration, input device handling and abstraction layer, and integrated windowing system with support for translucent windows and multiple display layers on top of the Linux framebuffer without requiring any kernel modifications.

  7. VESA BIOS Extensions - Wikipedia

    en.wikipedia.org/wiki/VESA_BIOS_Extensions

    Despite this, it is common that a driver thunk out to the real mode interrupt in order to initialize screen modes and gain direct access to a card's linear frame buffer, because these tasks would otherwise require handling many hundreds of proprietary variations that exist from card to card.

  8. Glossary of computer graphics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_computer_graphics

    Shadow buffer A synonym for shadow map. Shadow map A texture buffer holding depth values rendered in a separate render pass from the perspective of a lightsource, used in Shadow mapping; it is typically rendered onto other geometry in the main rendering pass. [29] Shadow volume One of the techniques of adding shadows to 3D scenes. Signed ...

  9. UMA Acceleration Architecture - Wikipedia

    en.wikipedia.org/wiki/UMA_Acceleration_Architecture

    The XAA/EXA/UXA/SNA APIs are for the 2D graphics drivers inside the X server.Note, that modern software uses direct rendering. Glamor obsoletes DDX, here with XWayland.. In computing, UMA Acceleration Architecture (UXA) is the reimplementation of the EXA graphics acceleration architecture of the X.Org Server developed by Intel.