Bitmap is short for BMP is an image file format that can be used to create and store computer graphics. A Bitmap file displays a small dots in a pattern that, when viewed from afar, creates an overall image and that Bitmap image is a grid made of rows and columns where a specific cell is given a value that fills it in or leaves it blank thus creating an image out of the data. A bitmap or raster graphic is a digital image composed of a matrix of dots. When we try to viewed at 100%, each dot corresponds to an individual pixel on a display. In a standard Bitmap image each dot can be assigned a different color. Together these dots can be used to represent any type of rectangular picture. There are several different bitmap file formats. The standard uncompressed bitmap format is also known as the Bitmap format or the device independent bitmap (DIB) format. It includes a header, which defines the size of the image and the number of colors the image may contain, and a list of pixels with their corresponding colors. This simple, universal image format can be recognized on nearly all platforms, but is not very efficient, especially for large images.