A shared terminal being an electronic whiteboard for displaying an image to a plurality of users on a display, the shared terminal comprising: obtaining means (28, 201, 219, 219a) for obtaining, from an IC card or a smartphone of a first user, first terminal identification information for identifying the IC card or the smartphone; transmitting means (21, 201, 205) for transmitting the first terminal identification information to a terminal management server, the terminal management server storing, for each of the plurality of users, information relating to a terminal (3, 4) of the user; and receiving means (21, 201, 205) for receiving first user identification information for identifying the first user, the first user identification information being transmitted from the terminal management server based on transmission of the first terminal identification information by the transmitting means (21, 201, 205), wherein the transmitting means (21, 201, 205) is further configured to transmit the first user identification information to a file management server, the file management server storing information relating to one or more folders accessible by one or more users of the plurality of users, the receiving means (21, 201, 205) is further configured to receive a first private folder name of a first private folder accessible only by the first user and a first shared folder name of a first shared folder accessible by the first user and at least one other user, the first private folder name and the first shared folder name being transmitted from the file management server based on transmission of the first user identification information by the transmitting means (21, 201, 205), and the shared terminal further comprises display control means (24, 213) for controlling the display to display the first private folder name and the first shared folder name to enable a selection of a destination to which electronic file data is to be stored. obtaining means (28, 201, 219, 219a) for obtaining, from an IC card or a smartphone of a first user, first terminal identification information for identifying the IC card or the smartphone; transmitting means (21, 201, 205) for transmitting the first terminal identification information to a terminal management server, the terminal management server storing, for each of the plurality of users, information relating to a terminal (3, 4) of the user; and receiving means (21, 201, 205) for receiving first user identification information for identifying the first user, the first user identification information being transmitted from the terminal management server based on transmission of the first terminal identification information by the transmitting means (21, 201, 205), wherein the transmitting means (21, 201, 205) is further configured to transmit the first user identification information to a file management server, the file management server storing information relating to one or more folders accessible by one or more users of the plurality of users, the receiving means (21, 201, 205) is further configured to receive a first private folder name of a first private folder accessible only by the first user and a first shared folder name of a first shared folder accessible by the first user and at least one other user, the first private folder name and the first shared folder name being transmitted from the file management server based on transmission of the first user identification information by the transmitting means (21, 201, 205), and the shared terminal further comprises display control means (24, 213) for controlling the display to display the first private folder name and the first shared folder name to enable a selection of a destination to which electronic file data is to be stored.