Abstract: An interactive I/O terminal supplies information to a user and inputs information based on operations of the user in accordance with the information supplied to the user. The interactive I/O terminal includes an I/O display panel for displaying a predetermined screen having a display area on which messages are to be displayed and operation keys for outputting signals corresponding to the operation keys operated by the user; a first controller for controlling the I/O display panel so that messages are displayed on the display area in the screen formed on the I/O display panel, a second controller for controlling the I/O display panel so that the screen is maintained on the I/O display panel until operations corresponding to a plurality of messages displayed on the display area are completed, and a processing unit for performing processes corresponding to the signals supplied from the I/O display panel based on operations of the user.

Abstract: The CPU in the processing unit of an external storage device transmits data between an information processing device and a storage medium, determines whether or not the information processing device can access the storage medium of the external storage device, decrypts data encrypted in the storage medium, etc. using a program loaded into RAM through an interface or a read/write unit. Changing the data loaded into the RAM efficiently and flexibly guarantees the security of the data stored on the storage medium.