Bitmap image

Many graphical user interfaces use bitmaps in their built-in graphics subsystems. For example, the Microsoft Windows and OS/2 platforms' GDI subsystem uses the Windows and OS/2 bitmap file format, usually named with the file extension.BMP (or .DIB for device-independent bitmap). Besides BMP, other file formats that store literal bitmaps include InterLeaved Bitmap (ILBM), Portable Bitmap (PBM), X Bitmap (XBM), and Wireless Application Protocol Bitmap (WBMP). Similarly, most other image file formats, such as JPEG, TIFF, PNG, and GIF, also store bitmap images (as opposed to vector graphics), but they are not usually referred to as bitmaps, since they use compressed formats internally.