| 摘要 |
A data storage apparatus acquires rule information that is used by the external device when performing data access and that defines a relation between the type of access operation and a data read condition, and status information including information for specifying data currently displayed on the external device, and indicates a current display status of the external device. Then, the data storage apparatus determines data to be pre-read from a storage medium and stored in a temporary data storage unit based on the rule information and the status information, and reads the determined data from the storage medium, and stores the read data in a temporary data storage unit. In the case where a data access request is received from the external device, if the requested data is stored in the temporary data storage unit, the requested data is read from the temporary data storage unit, and is output. |
