Twin is a text-mode window environment. It turns a text terminal into a X11-style display with window manager, terminal windows, and can also serve as display for remote applications. Each terminal window provides the functions of a text-mode Linux console. Twin runs on X11, libggi, itself, the Linux console, and any termcap/ncurses-compatible tty.
Twin (Text WINdows) is a text-mode windowing environment written and maintained by Massimiliano Ghilardi; it draws and manages text windows on a text-mode display, like X11 does for graphical windows. It has a built-in window manager and terminal emulator, and can be used as server for remote clients in the same style as X11. It can display on Linux console, on X11 and inside itself.