SunView (Sun Visual Integrated Environment for Workstations, originally Suntools) is a discontinued windowing system from Sun Microsystems that was included as part of its UNIX implementation starting in 1983. Unlike later UNIX windowing systems, much of it was implemented in the system kernel. SunView ran on Sun's desktop and deskside workstations, providing an interactive graphical environment for technical computing, document publishing, medical, and other applications of the 1980s, on high resolution monochrome, greyscale and color displays.