| 摘要 |
PURPOSE:To make the high-speed processing of a register and an output to an information retrieving device possible, by making desired data in real time of a magnetic disc to be extracted and data to a magnetic disk device with an optional address to be registered. CONSTITUTION:Both the first storage part 7 storing data to be retrieved from an external storage device 1 and the second storage part 8 storing at least one retrieval data and the pertinent data of retrieval are provided. Further, a comparing part 10, which compares contents of the first storage part and the second storage part 8 with each other, and an address control part 13 which controls a comparison condition storage part indicating comparison conditions and the second storage part 8 in time division are provided. Contents of the second storage part 8 are read out or written after read out in time division during one access of the first storage part 7 in accordance with the compared result in the comparing part 10 by the control of the address control part 13. Thus, one retrieval data and pertinent data of retrieval are stored at least in the second storage part 8 with one access of the external storage device 1. |
