| 摘要 |
PROBLEM TO BE SOLVED: To provide information on the number of vacant seats, etc., of a restaurant which needs to be reported quickly through a terminal such as a portable telephone set that an individual owns. SOLUTION: Terminals 1 installed in restaurants A, B, and C provide information on the numbers of vacant seats of the restaurants on-line for a host computer 3, which provides the vacant seat information immediately at a request from a portable telephone 5 through a public telephone line 4. |
