2. User Interface.
Linux's graphical interface is the X System. The X System is developed to give a common window system for all the operating system. Linux X System is called Xfree86, free implementation from X-Windowing System. It is modified from the original to be compatible with PC hardware such as video cards, mouse, and so on. Linux's graphical interface can be configured through something called Window Manager. The most popular Window Managers nowadays are KDE (the K Desktop Environment) and GNOME (the GNU Network Object Model Environment). Users can set up their monitors so that they have much better resolutions. The Window Manager places a border around the window on user's screen so that user can minimise or maximise, as he/she likes. It also allows user to resize, move and kill windows. There's something users have to remember, users are recommended to use a VGA-compatible display interface for the console terminal. It is because not every graphic card can display X Window System!.
properly.
Users can download Window Manager freely from the Internet as well. Here are some addresses that offer Window Managers:.
" http://www.kde.org/index.html.
" http://www.plig.org/xwinman/fvwm.html.
" http://www.plig.org/xwinman/wm2.html.
" http://www.plig.org/xwinman/mwm.html.
" http://www.plig.org/xwinman/afterstep.html.
Linux has something called virtual console. It is one of the features that users can use when they use console mode. A user can login as several login names by going to the other console window. This can be achieved by pressing Alt + F2. By pressing those 2 keys together, the user can have a new console mode. If the user wants to return to the original one, he/she can press Alt + F1. Users can have 6 virtual consoles by default. Users can always swap between consoles even when running X Window System. .
3. Process Management.
The brain of Linux is the kernel, the operating system code that governs the whole operating system.
