JPS558620A - Electronic apparatus having magnetic bubble memory element - Google Patents
Electronic apparatus having magnetic bubble memory elementInfo
- Publication number
- JPS558620A JPS558620A JP7937378A JP7937378A JPS558620A JP S558620 A JPS558620 A JP S558620A JP 7937378 A JP7937378 A JP 7937378A JP 7937378 A JP7937378 A JP 7937378A JP S558620 A JPS558620 A JP S558620A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic bubble
- memory element
- exchange
- bubble memory
- defect information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To prevent the trouble to exchange a P-ROM at each time of memory element exchange, by rewriting defect information corresponding to each magnetic bubble memory element onto a RAM in the apparatus main body and controlling the magnetic bubble-memory.
CONSTITUTION: Defect information of used magnetic bubble memory element 11 is inputted from input device 12 and is rewritten and stored in non-volatile RAM 14 through CPU 13. Control circuit 15 refers to contents of this non-volatile RAM 14 to control magnetic bubble memory 11. In case of magnetic bubble-memory element 11 exchange, defect information of a new magnetic bubble-memory element is inputted from input device 12, and contents of non-volatile RAM 14 are rewritten, so that the trouble to exchange a P-ROM can be omitted.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7937378A JPS558620A (en) | 1978-06-28 | 1978-06-28 | Electronic apparatus having magnetic bubble memory element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7937378A JPS558620A (en) | 1978-06-28 | 1978-06-28 | Electronic apparatus having magnetic bubble memory element |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS558620A true JPS558620A (en) | 1980-01-22 |
Family
ID=13688060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7937378A Pending JPS558620A (en) | 1978-06-28 | 1978-06-28 | Electronic apparatus having magnetic bubble memory element |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS558620A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61233492A (en) * | 1985-04-09 | 1986-10-17 | Fujitsu Ltd | Magnetic bubble storage device |
JPS6282593A (en) * | 1985-10-05 | 1987-04-16 | Tech Res & Dev Inst Of Japan Def Agency | Bubble file memory device |
-
1978
- 1978-06-28 JP JP7937378A patent/JPS558620A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61233492A (en) * | 1985-04-09 | 1986-10-17 | Fujitsu Ltd | Magnetic bubble storage device |
JPH0217868B2 (en) * | 1985-04-09 | 1990-04-23 | Fujitsu Ltd | |
JPS6282593A (en) * | 1985-10-05 | 1987-04-16 | Tech Res & Dev Inst Of Japan Def Agency | Bubble file memory device |
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