The BlackBerry® operating system is a multithreaded operating system, which means that many applications and processes can run actively on the BlackBerry device at the same time. For example, applications can use background threads to manage processor-intensive tasks or network communications so that they do not affect the main thread. If an application creates background threads, and a BlackBerry device user closes the application, the background threads can remain active.

• Best practice: Using multithreading