vì vậy bất cứ điều gì giúp ồn ào ổ đĩa cứng của bạn cùng là một điều tốt và giúp bạn không bị quá hoang tưởng về an ninh. Disk Cleanup có thể không có vẻ như nó có bất cứ điều gì để làm với an ninh. Tuy nhiên, nhiệm vụ bảo trì máy tính này có thể giúp bảo vệ hệ thống máy tính | Microsoft Alternatives Inside the Linux Desktop Chapter 12 185 Install Both Make One the Default If disk space permits install both Gnome and choose the desktop you want to use by default. Consequently you can have access to both KDE and Gnome applications in either environment. Not every Gnome application is compatible in KDE and vice versa. However compatibility problems are increasingly rare. Conduct research about additional desktop environments and how to choose them. This way you will be empowered to choose and customize your desktop environment. Alternative Window Managers The Xfce desktop environment was designed to run on any UNIX system including Linux. It is also designed to be compatible with both Gnome and KDE. One of the features special to Xfce is that it supports drag-and-drop file management more completely than its competitors do. For more information on Xfce go to . Another alternative desktop environment is the Common Desktop Environment CDE which was developed by a team composed of employees from HP Novell Sun and IBM. Sun Solaris systems have traditionally shipped with CDE. It is not a common window manager. For more information about CDE go to software solaris cde . The X Window System and Window Managers The X Window system was designed to provide a standards-based GUI environment. Thus a developer who wants to create an X Window server simply needs to read common standards. He or she can then create applications that conform to those standards. The X environment was designed from the beginning to be network compatible meaning that it is possible to run an X Window session over the network. Consequently using the X Window environment you can connect to a remote system s X Window server to control it as if you were sitting directly in front of the remote system. An X Window server is responsible for making sure that the GUI environment is available. This environment is most often made available to the local .