An information processing system has a file memory, a schedule information memory, a reminder information memory that stores reminder information including identification information of a user, a registration deadline of the first electronic file, and a reminder submission time in connection with information indicating a registration location of the first electronic file in the file memory, a setting unit that specifies, upon arrival of the reminder submission time, a schedule item for reminding the user of the task in schedule information of the user stored in the schedule information memory as an item scheduled for the registration deadline or schedule for a day prior to the registration deadline, and a display data outputting unit that outputs, upon receipt of a request for displaying the schedule information, schedule information display data in which display information corresponding to the schedule item is associated with information on a link to the registration location.