INFORMATION PROCESSING DEVICE, METHOD OF CONTROLLING DISPLAY, PROGRAM AND INFORMATION STORAGE MEDIUM

Provided is an information processing device that provides a user with a trajectory of positions calculated by positioning unit in a user-friendly way without displaying a map. The device includes a positioning section (60) repeatedly calculates a position, a position coordinate storage section (62) that stores a plurality of positions calculated by the positioning section, and an other-user information providing section (70) that displays letter strings indicating the positions stored in the position coordinate storage section (62) in an order that the positions are calculated. The positioning section (60) stores, in a case where a newly calculated position is at a given distance or more from the position last stored in the position coordinate storage section (62), the newly calculated position into the position coordinate storage section (62).