Abstract: A system for delivering sound data, in which a user can select sound data freely as sound data using in his/her own user terminal via a network after the user purchased the user terminal, in particular, in which the payment burden for the user to register the sound data is made reasonable, is provided. When a server for delivering sound data received a request from a user terminal to deliver some sound data, the server for delivering sound data judges whether the terminal ID of the user terminal has been registered in a user terminal management database, and also confirms whether the remaining number of sound data to be delivered to the user terminal is “0” or not. When the remaining number was not “0”, the server for delivering sound data transmits information to select the sound data. When the user selected the sound data, the server for delivering sound data transmits the sound data to the user terminal without a charge under the price condition of the user terminal.

Abstract: A work management system has input means having a function of inputting coordinate information from the surface of a panel, output means having a function of projecting electronic information onto the panel, and data processing means for executing a predetermined processing, e.g., preparation and input processing of a form, a chart or a drawing, retrieval, editing, totalization, etc., by establishing a correspondence between the information projected on the panel by using the output means and the coordinate information input from the input means. The data processing means displays a list of registered items to be designated in a window for selection of one of the items, whereas, when coordinate information is input from two points for an entry column for time setting, the data processing means draws a bar between the two points. Control information which is conformable to working hours of equipment at a work site, e.g.