Shader is a computer program developed by Microsoft as a tool to do shading over an image with the use of lighting and color. This tool is also used by designers to give special effects to graphics and images Shader model 2 0 gives additional and enhanced capabilities to the user and allows him to indulge in 3D animation with the help of this tool. If you are interested, you can buy a GPU card that contains this program. However, new GPU’s have Shader model 3 0. This is why you find it difficult to get access to this model. Get Shader model 2 0 video driver here for free.