Chapter 11. Multitasking

It's hard to imagine a modern computing device that doesn't allow you to run multiple applications at one time; however, up until v4.0 of the iOS for the iPhone and iPod Touch, and v4.2 for the iPad, you could only run one application at a time. Because of this, multitasking was one of the most aniticipated updates that have come out for the iOS.

Multitasking in the iOS is a different than the traditional concept of multitasking, in which multiple applications can be open at the same time and have equal access to computing resources. Instead, in the iOS, when an application is put into the background because another application has been brought to the foreground (or if the device receives a phone call), the application ...

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