Video memory - Citizendia

Video memory is a term generally used in computers to describe some form of writable memory, usually RAM, dedicated to the purpose of holding the information necessary for a graphics card to drive a display device. A computer is a Machine that manipulates data according to a list of instructions. A video card, also known as a graphics accelerator card, display adapter, or graphics card, is a hardware component whose function is to A display device is an Output device for presentation of Information for Visual or Tactile reception acquired stored or transmitted In modern 3D graphics cards, the video memory may also hold 3D vector data, textures, backbuffers, overlays and GPU programs. Texture mapping is a method for adding detail surface texture or colour to a computer-generated graphic or 3D model. Video overlay is any technique used to display a Video window on a computer display while bypassing the chain of CPU -> Graphics card -> Computer monitor

This memory sometimes takes the form of dedicated memory chips integrated in the framebuffer, and sometimes takes the form of a Shared Memory Architecture (SMA). A framebuffer is a video output device that drives a video display from a memory buffer containing a complete frame of data In Computer architecture, Shared Memory Architecture (SMA refers to a design where the graphics chip does not have its own dedicated memory and instead shares the

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