| 摘要 |
Data retrieval apparatus comprises a base unit e.g. a geographic globe having a surface bearing a set of index information, and a pen-like operator separate from and co-operable wirelessly with the globe. The operator has a sensor for sensing the index information when it is brought close to the globe surface. The base unit contains memory device, controller and a display unit, which are able to display relevant data information to the user in accordance with the sensed index information. Moreover, the base unit contains a wireless transceiver by which the data information can be updated from remote sources in real-time. |
