The Main Menu K Icon
Similar to the Main Menu of GNOME (and many other graphical environments), the main menu in KDE, at the K icon, incorporates all of the available KDE applets and applications, as well as many other applications on your Red Hat Linux system.
You can find the icon on the left of the Panel. You open the main menu by clicking once on the icon. As in Figure 3-6, you'll see the top-most level of menu headings first. These headings are the major groups into which the applications are placed. For example, to open KOrganizer, the KDE calendar and appointment book, you would open Main Menu K, drag your mouse to highlight the Applications menu listing, then highlight and click once on the Organizer entry in the submenu which opens.
Also available from the main menu, you'll find:
The KDE Control Center, an invaluable resource for customizing your environment and locating system information.
A Home Directory listing which, which selected, will open a browser showing you all the files in your account.
A menu called Disk Navigator, which provides quick access to recent applications as well as important directories in the filesystem.
The Lock Screen and Logout icons, which will password protect your desktop and allow you to log out of your account.