1. An information acquisition and identification system comprising: image characteristics storage storing image characteristics of textured patterns formed on component or products; extracting unit extracting an image of an n-dimensional (n: natural number) symbol and an image of a textured pattern from an image including at least the n-dimensional symbol for displaying information on a part, a product, or a product including the part as its component and a textured pattern formed on the part or the products; acquiring unit acquiring information on the part or the products from the extracted image of the n-dimensional symbol; and identifying unit identifying the part, the product, or the product including the part as its component by matching image characteristics of the extracted image of the textured pattern with image characteristics stored in the image characteristics storage means.