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Other names: video card, video adapter, graphics accelerator card, display adapter.
It is an expansion card whose function is to generate output images to a display. Many graphics cards offer added functions, typically accelerated rendering of 3D scenes and 2D graphics, some of them offer video capture, TV-tuner adapter, MPEG-2/MPEG-4 decoding etc.
Video hardware can be integrated on the motherboard, often occurring with early machines. In this configuration it is sometimes called video controller or graphics controller. Modern low-end to mid-range motherboards often include a graphics chipset on the motherboard. This graphics chip usually has a small quantity of embedded (zabudované) memory and takes some of the system's main RAM, reducing the total RAM available. This is usually called integrated graphics or on-board graphics, and is low-performance for those who want to use 3D applications. Almost all of these motherboards allow the disabling of the integrated graphics chip in BIOS, and have a PCI Express slot for adding a higher-performance graphics card in place of the integrated graphics.
A modern video card consists of a printed circuit board on which the components are mounted. These include:
Graphics processing unit (GPU)
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