CTWM

Window manager

In Unix computing, CTWM (Claude's Tab Window Manager) is a stacking window manager for the X Window System in the twm family of window managers. CTWM was created in 1992 by Claude Lecommandeur of EPFL from the source code for twm, which he extended to allow for virtual desktops ("workspaces" in CTWM's terminology), an innovative feature at the time for a window manager; his inspiration was vuewm, an early Unix desktop environment.