posted 05 October 2011 19:02            

To see all the suspended apps, double-click the Home button and you'll see the icons of the apps in something that looks like the dock. To completely quit an app, touch and hold on the icon; when it starts wiggling, you can quit by touching the minus (-) sign. Don't worry, this is not deleting the app from your iPad. You will still be able to see the app on the desktop of your iPad, and you can re-launch the app at any time.

If you want to ensure that all apps stop running and free memory, do a full power down of your iPad: Press and hold the power button on the edge of the iPad until you see the red swipe thing for powering down. Power it down. Then to power up the next time you use it, press and hold that same power button again. It will take about a minute to power up. This is a quick and easy way to ensure that you are starting with a clean slate each time and won't inadvertently leave some apps in the background that might wake up to check for a Wi-fi connection (which they will do, even when the iPad is turned off) or, on some iPads, to check the GPS location, possibly using up memory or processing time during a live performance.