Abstract: A method for switching an operating system suitable for an electronic device is disclosed. The electronic device is capable of running a first operating system and a second operating system. The user interface of the first operating system is displayed at a display unit of the electronic device, including information of at least one application program of the second operating system. When the information of the application program on the user interface of the first operating system is selected, the electronic device wakes up the second operating system and switches to display the user interface of the second operating system to execute the application program. Moreover, an electronic device using this method is also disclosed.

Abstract: A screen resolution adjustment method for a touch screen of an electronic device are disclosed, wherein the touch screen includes a central display region and an edge region. The screen resolution adjustment method includes the steps of: receiving a touch signal on the touch screen; judging whether the touch signal corresponds to a touch at the edge region; and if the touch signal corresponds to a touch at the edge region, adjusting the resolution of a displayed picture displayed at the touch screen of the electronic device to form a border frame around the central display region.