1. A schedule managing method comprising: displaying an image; in response to a tap being performed on the image, selecting, by a controller, a portion of the image where the tap is performed as a recognition region, wherein the portion of the image that is selected includes at least one full word of text; extracting, by the controller, data from the recognition region by converting image data representing the at least one full word of text into textual data; categorizing, by the controller, the extracted data including the textual data according to a predetermined categorization rule; and generating a schedule record using the categorized data.