INFORMATION OUTPUT DEVICE FOR OUTPUTTING A PLURALITY OF INFORMATION PRESENTING OUTLINE OF DATA

摘要

In a mobile telephone as an information output device, when a mail application is executed to open a reception box (S201), a mail file existing in a mail storage area is read in (S203). If a mail to be processed exists, for mails in a predetermined range before and after the mail currently selected by the cursor, pre-read for creating a thumbnail of an attached file is executed (S211) prior to opening of a mail from a user. The thumbnail created in advance is stored in a thumbnail storage area. When a mail opening operation is performed by the user (S213), the thumbnail created in advance for the attached file of the mail is displayed (S215).