Service: A service is a component that runs in the background to perform long running transactions or perform work for remote process.
Content Providers : A content provider manages a shared set of application data.Through the content provider , other applications can examine or even change the data (if the content provider permitting).
broadcast receivers : A broadcast receiver is an item that meets the scale broadcast system announcements .
Show all tasks and ongoing process (with pid and uid)
show / edit the database of all applications and SharedPreferences sqlite