Multi-tasking is easy with Android™ because open applications keep running even when you open another application. There’s no need to quit an application before opening another. You can use and switch among several open applications. Android™ manages each application, stopping and starting them as needed, to ensure that idle applications don’t consume resources unnecessarily.
Open an application simply by touching its icon on the screen.
You can customize your Home screen with the application icons you use most often. Applications are located on the Applications screen, but you can copy any application icon to your Home screen for faster, more convenient access. No matter where the icon is, on the Applications screen or your Home screen, just tap it to open and use it.
Tap the Recent Apps Key . A screen opens and displays a vertically scrolling list of all of the applications that are currently open.
Tap the application preview of the application you want to use or tap the Back Key to return to the current screen.
Swipe up or down to view the entire list of open applications.
Tap an icon to use it.
You can also tap the application image, but if you tap the screen background, you return to the Home screen.
Flick an application icon to the right or left to close the application and remove it from the list.