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The operating system was originally called BBX, but this was changed when Black Berry was blocked from using the BBX trademark after legal action from BASIS International, who already used it for their software.The operating system, as well as two devices, the Z10 (a full touchscreen device), and the Q10 (a device equipped with a physical keyboard), were announced simultaneously around the world on January 30, 2013.For instance, a user can unlock the device or return to the home screen by swiping from the bottom to the top.Some gestures offer additional modes of interaction when they are used differently.Active Frames can have widget-like functionality and show small bits of information, similar to widgets on Android.For instance, the calendar application can show upcoming events and meetings.

Similarly, when the finger is moved from the bottom to the right in a curved motion, the user can enter Black Berry Hub immediately.An Active Frame is a miniaturized window of the application which keeps running in the background.A user can return to such an application by tapping on the Active Frame or close it by tapping on the X icon.It shows all messages and notifications in a continuous list, sorted by date.The user can filter results by application or, in the case of email, also by inbox.