| 摘要 |
PCT No. PCT/JP81/00340 Sec. 371 Date Jul. 27, 1982 Sec. 102(e) Date Jul. 27, 1982 PCT Filed Nov. 18, 1981 PCT Pub. No. WO82/01958 PCT Pub. Date Jun. 10, 1982.A data update system in a bubble memory in which, to preserve the simultaneity of data in the event of a power failure during the updating of data in the bubble memory, initialization data is written into a specific data storage area of the bubble memory the initialization data indicates that the data in a first data storage area is invalid, and new data is subsequently written into the first data storage area from a first record to a last record successively under the control of a bubble memory controller. The initialization data is thereby erased after the new data is completely written in the first data storage area, after which the new data, written in the first data storage area, is again written into a second data storage area from the first record to the last record thereof. |
