Abstract: A content sharing method is provided. The content sharing method is performed by a display device connected to at least one user terminal. The content sharing method includes displaying content on the display device, receiving information included in a transparent layer of a first user terminal among the at least one user terminal from the first user terminal, and overlapping the transparent layer, including the information received from the first user terminal, on the displayed content.

Abstract: A system and method of sharing an object based on a knocking input are provided. The method includes detecting a knocking input on sharing device, determining at least one object displayed on a screen of the sharing device based on the knocking input, and determining at least one counterpart device to share at least one object with, and sharing the at least one object with the at least one counterpart device, wherein the at least one object displayed on the screen of the sharing device is also displayed on a screen of the at least one counterpart device after being synchronized.

Abstract: A portable device and screen display methods of a display apparatus connectable to a portable device are provided. The method includes displaying a collaborative screen including a plurality of operation areas on the display apparatus; allocating at least one of the operation areas to the portable device; displaying the collaborative screen with the allocated operation area being distinguishable; and giving notification so that the allocated operation area is displayed on a corresponding portable device.

Abstract: Exemplary embodiments may disclose a server including: a communicator configured to communicate with an external apparatus; a storage unit configured to store medicine prescription information about a user; and a controller configured to generate temporary medicine prescription information for providing medicine to the user based on the medicine prescription information if a medicine-taking completion message is not received, and control the communicator to transmit the temporary medicine prescription information to the external apparatus.

Abstract: A method, an apparatus, and a system for operating of a server that generates an integrating shopping cart are provided. The method of the server includes identifying a user doing online shopping through a communication device; monitoring the online shopping of the user; obtaining online shopping information of the user, based on the monitoring; and storing the online shopping information of the user.