What is graphics card?

Graphics card also known as video card is a device that processes information about images in a computer specific as color, resolution details, the contrast of the image ..... graphics card are two types is discrete cards and onboard cards
 
Often, the graphics components are on a separate card that plugs into a slot on the motherboard, which is the main part of the computer. That's why the graphics components are commonly called the graphics card. Sometimes the graphics card components are build directly into the motherboard.
 
A Graphics Card is a piece of computer hardware that produces the image you see on a monitor. The Graphics Card is responsible for rendering an image to your monitor, it does this by converting data into a signal your monitor can understand
 
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