\section{Introduction}

\BIT is an interactive full color image viewer and editor
based and runs on Silicon Graphics Workstations. It dispalys
a variety of popular image formats, amonst them, 
{\tt CompuServ GIF, JFIF, TIFF, IRIS RGB, X11 Bitmap}
and possible others. Differs from many other imager viewer
or editors, \BIT is full color, and its internal data structure
can deal with 24bits images naturally while handling
color indexed images efficiently.


