The name KDE was intended as a wordplay on the existing Common Desktop Environment, available for Unix systems. CDE was an X11-based user environment jointly developed by HP, IBM, and Sun through the X/Open consortium, with an interface and productivity tools based on the Motif graphical widget toolkit. It was supposed to be an intuitively easy-to-use desktop computer environment.[4] The K was originally suggested to stand for "Kool", but it was quickly decided that the K should stand for nothing in particular. The KDE initialism is therefore expanded to "K Desktop Environment".