| 摘要 |
[Problem] To provide a handheld terminal device or the like that makes it easy for a user to perform edits or the like, keeps the overall data volume of materials down, prevents unwanted gaps in explanations, and maintains the effectiveness of said explanations to other parties such as the user's customers. [Solution] A handheld terminal device (20) that has a display unit (21), wherein: displayed slide information comprises a plurality of pieces of slide information, stored separately on a per-screen basis; said slide information can be combined arbitrarily; the slide information comprises main-explanation slide information used in a main explanation and related slide information related to said main-explanation slide information; slide information can be stored in association with main-explanation slide information; and from related slide information, the main-explanation slide information associated therewith can be displayed on the display unit in a single-screen transition. |
