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This is a bitmap image format that is used on Sun Microsystems workstations running the Sun Unix operating system. It is used for some types of research. This format does not support transparency settings. It supports full-color and grayscale images.

This format was created by Nokia for use in its proprietary phones. A bitmap image was used to transfer image files between devices over a wireless connection. It was mainly used when exchanging multimedia text messages that support inserting pictures.