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how graphical card works...............
The images you see on your monitor are made of tiny dots called pixels. At most common resolution settings, a screen displays over a million pixels, and the computer has to decide what to do with every one in order to create an image. To do this, it needs a translator - something to take binary data from the CPU and turn it into a picture you can see. Unless a computer has graphics capability built into the motherboard, that translation takes place on the graphics card. 
The graphics card creates a wire frame image, then fills it in and adds textures and shading.
A graphics card's job is complex, but its principles and components are easy to understand.
The graphics card creates a wire frame image, then fills it in and adds textures and shading.
A graphics card's job is complex, but its principles and components are easy to understand.
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