According to one embodiment, contents which are created by first and second application programs are arranged two-dimensionally according to a first direction and a second direction. The first direction represents a chronological order, and the second direction is perpendicular to the first direction. The first application is one of an application to input handwriting, an application to capture an image, an application to record voice, and an application to clip a part of a document. The second application is another one of the application to input handwriting, the application to capture an image, the application to record voice and the application to clip a part of a document.