Source : Free On-Line Dictionary of Computing

BMP
     
        {Basic Multilingual Plane}

bmp
     
         {Microsoft Windows} {bitmap} format.
        Bmp files may use {run-length encoding}.
     
        This is the only graphics format where {compression} actually
        enlarges the file.  The format is widely used nonetheless.
     
        [Format?]
     
        (1998-03-14)