The XFCE desktop interface is used with Unix and Unix compatible platforms. It is something that can be used with Solaris and Linux. It is distributed as freeware and can be downloaded from the CNET website.
No. There is no single user interface for Linux. GNOME. KDE, Xfce, Fluxbox, and CDE are all examples of user interfaces / desktop environments for Linux.
Xfce is a GTK+ based desktop environment for Linux. It is similar in many respects to GNOME, but is designed to use less RAM.
There are packages available on the repositories that allow you to change desktop environments. Just run a "apt-get search xfce" to look at the available packages that may be related to Xfce.
Operating systems graphical user interfaces (GUIs) can be customised and modified by the user to various degrees so they cannot be truly said to belong to the OS or be "cleanest". However, on of the cleanest OS interfaces available by default is Xfce for the Linux operating system. Also, the absolute cleanest interface is a command-line interface, of which many OS's possess, among which Windows (all versions), GNU/Linux, various flavours of Unices etc.
Some of the Linux desktop environments that are available are: Unity, Cinnamon, Gnome, Sugar, Enlightenment, Mezzo, Xfce, Xmonad, KDE, MATE, LXDE, and ROX.
There is no singular user interface for Linux. Linux itself makes no requirement for a user interface. There are plenty of interfaces: GNOME, KDE, Xfce, LXDE, BASH, ZSH, CSH, TSH, FISH, and dozens of window managers.
Xfce LXDE Fluxbox Blackbox Openbox JWM Mezzo WindowMaker GNUStep
i assume by gui, i assume you mean the window manager. gnome and kde are popular. i personally like to use xfce, the "cholesterol free desktop environment".
It is not possible to install Xfce on Damn Small Linux without extensive modification. Damn Small Linux uses a very crude Xserver that is not capable of rendering Xfce. Also, the versions of several libraries needed for Xfce are too old. It would be far easier to start of with a distro that supported Xfce from the start, like Xubuntu.
SparkyLinux is a lightweight Linux distrubition.It has a lot of versions:In the stable line, it has LXQt, Xfce, MinimalGUI, MinimalCLI and ARMHF version.In the (Semi-)Rolling line, it has LXQt, MATE, Xfce, MinimalGUI and MinimalCLI version. They also have three special verions: GameOver, Multimedia and Rescue.
Slackware Linux has a number of advanced features. Some of them are GCC 4.1.2, XII 7.2.0, HAL, Linux 2.6.21.5, Xfce 4.4.1, The K Desktop Environment and Apache 2.2.4.
There is no "default" in the sense that Fedora provides only one out of the box, or even one at all. The main "Desktop Edition" disc uses GNOME, but the project also provides discs for KDE, LXDE, and XFCE, as well as a CLI-only installation.