Mobile terminal and display controlling method therein

A method of controlling a mobile terminal, the method comprising:

• allowing, via a communication unit of the mobile terminal, communication with at least one external terminal;
• storing, via a memory of the mobile terminal, at least first and second operating systems including at least first and second modes, respectively;
• executing, via a controller of the mobile terminal, the first operating system and activating the first mode corresponding to the first operating system;
• displaying, via a display unit of the mobile terminal, a first information screen corresponding to the activated first mode;
• simultaneously displaying, via the display unit, a first application execution history for the first mode and a second application execution history for the second mode on a prescribed region of the first information screen of the first mode, wherein the first application history and the second application history are displayed on separate lines;
• identifiably displaying, via the controller controlling the display unit, whether applications included in the application execution history were executed in the first mode or the second mode;
• and
• merging together, via the controller, the first application history and the second application history into a single line based on a predetermined touch action on the display unit,
• wherein the memory includes first and second database storage regions corresponding to the first and second modes, respectively, and a common database region in common with the first and second modes, and
• wherein the first and second storage regions are restricted based on the mode and the first and second modes share the common database region.