Controlling the system while you are on Ubuntu

Any Windows user would suggest to hit Ctrl + Alt + Del which opens the Windows Task manager when an application becomes unresponsive. This manager contains the information of the running tasks, processes, networking and so on.

Similarly, in Ubuntu also we have such a manager which gives the details of various aspects like processes, networking etc., In Ubuntu, it is called "System Monitor". When an application becomes unresponsive in Ubuntu, then I would suggest you to use one of these methods:

1. Goto System -> Administration -> System Monitor and kill the process which is unresponsive.
2. Open Application -> Accessories -> Terminal and type "killall " and you are done with it.
3. Use "Force Quit" applet.