Using the built-in Task manager on Galaxy Tab 10.1
The task manager is useful for app and battery purposes.
Saving battery power is a popular topic when it comes to Android; that's why so many people turn to task managers to help them see which apps are running in the background. Instead of scouring the Android Market for the perfect task manager or killer, you can just use the built-in one that Samsung's flavor of Android provides. While it doesn't auto-kill apps after a certain period, it does keep you informed of which apps are running and let you close them all at once or individually. Read on to learn how to pull the task manager up, and how to add the widget to your desktop.
Accessing the Task manager without the widget:
Press and hold on the Home icon at the bottom until the Task manager window pops up. You can choose to end all of the active applications or view the RAM manager. The RAM Manager tab will let you see the amount of RAM in use and free. Clearing the memory may end some of your current applications, so do this with care.
Adding the Task manager widget to your Home screen:
Step 1: Press the plus (+) icon in the top right corner, press and hold an empty space on a Home screen.
Step 2: Choose the widgets tab from the next screen.
Step 3: Find the widget called Program monitor in the list.
Step 4: Drag the widget to the Home screen you want it to reside on.
Step 5: Press the screen you put the widget on to move it to your desired location.
The widget will display the current active apps. Tapping on it will open the Task manager to allow further actions such as ending apps or clearing the RAM.