For its simplicity and that it is included with Windows, it rapidly became one of the most used applications in the early versions of Windows, introducing many to painting on a computer for the first time. The program can be in color mode or two-color black-and-white, but there is no grayscale mode. The program opens and saves files in Windows bitmap (BMP), JPEG, GIF, PNG, and single-page TIFF formats. Microsoft Paint is a simple raster graphics editor that has been included with all versions of Microsoft Windows. IA-32, x86-64, and ARM (historically Itanium, DEC Alpha, MIPS, and PowerPC)