公开(公告)号：JPH02158824A

公开(公告)日：1990-06-19

申请号：JP31204088

申请日：1988-12-12

Applicant: IBM JAPAN

Inventor： NAKAMURA TAKASHI ,  NUMATA TSUTOMU ,  OGAKI KAZUTAKA

IPC: G06F3/06

Abstract: PURPOSE:To effectively use the memory of a disk device by providing a shared storing means to write outputted data in conformity to prescribed preferential order and time division multiplex controlling means to read the stored data in conformity to the prescribed preferential order. CONSTITUTION:One storing means 10 is shared by a microprocessor 6, host computer 4 and the disk device 12, and the data to be outputted from the microprocessor 6, the host computer 4 and the disk device 12 is written in the shared storing means 10 in conformity to the prescribed preferential order. Then, the time division multiplex controlling means 8 to read the data stored in the shared storing means 10 to the microprocessor 6, the host computer 4 and the disk device 12 in conformity to the prescribed preferential order is provided. Namely, a memory function to store the data to be used by the microprocessor 6 to control the disk device 12 and the function to transfer the data between the disk device 12 and the host computer 4 are given to one storing means 10. Thus, the memory of the disk device 12 can be used effectively.