| 摘要 |
PURPOSE:To shorten an access time by giving an address which does not overlap to each other to a static storage means and a magnetic disk device, and executing an information transfer between the static storage means and the magnetic disk by a command from the outside. CONSTITUTION:A magnetic disk device is provided with an address discriminating circuit 3, a static storage writing/reading-out circuit 4, a static storage part 5, an address generating circuit 6, a battery mechanism 8, and automatic charging mechanism 9. An address which does not overlap to each other is given to the static storage part 5 and a storage area of the magnetic disk 16. As for the static storage part 5, electric power is backed up by the battery mechanism 8. A controlling circuit 7 receives a command from an external information processing device 1, basing on which each transfer address in the static storage part 5 and on the magnetic disk 16 is generated by the address generating circuit 6. By this address, information is transferred to each other between the magnetic disk 16 and the static storage part 5. |
