Abstract: According to one embodiment, an electronic device including, a card processor, a first application processor, a second application processor, a display processor, an image output controller and a controller. The card processor to transfer data to a card device includes a signal processor. The first application processor to execute a first application for launching and finishing an operation of the signal processor of the card device authenticated by the card processor, or for selecting the card device from card devices. The second application processor to execute a second application for providing as a user interface for operating the signal processor of the card device authenticated by the card processor.

Abstract: According to one embodiment, an information processor is provided with a graphics processing unit (GPU) to display a graphical user interface (GUI) screen on a display module using the GPU. The information processor includes a storage module, a component specifying module, and an instruction converter. The storage module stores node tree information and an association table. The node tree information sets relationship between nodes to be arranged in a virtual three-dimensional (3D) space corresponding to the GUI screen. The relationship includes positional relationship in the virtual 3D space. The association table defines association between each node and a GUI component that constitutes the GUI screen. The component specifying module specifies a GUI component in association with each node referring to the association table. The instruction converter converts the specified GUI component into a GPU drawing instruction referring to the node tree information and outputs the drawing instruction to the GPU.