JPS55159263A - Read-in and write-in system for magnetic disc - Google Patents
Read-in and write-in system for magnetic discInfo
- Publication number
- JPS55159263A JPS55159263A JP6728979A JP6728979A JPS55159263A JP S55159263 A JPS55159263 A JP S55159263A JP 6728979 A JP6728979 A JP 6728979A JP 6728979 A JP6728979 A JP 6728979A JP S55159263 A JPS55159263 A JP S55159263A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disc
- data
- write
- processing
- read
- 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
Landscapes
- Memory System Of A Hierarchy Structure (AREA)
Abstract
PURPOSE: To enable simple copy, by writing in the data for one track's share at least to the secod magnetic disc, after reading in and storing the data from the first magnetic disc.
CONSTITUTION: The upper rank information processor 1 gives required information to the magnetic disc control unit 2, the unit 2 stores the data to the buffer via the bus 2' from the magnetic disc 4, and the operation of write-in of data to other magnetic disc via the bus 3' is repeated, and copy is finished by informing the end of processing of the magnetic disc control unit 2 to the upper rank information processor 1 at the end of operation. The processor 1 feeds required information at first and waites for the information of the end of processing after that, allowing to reduce the load and the processing time.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6728979A JPS55159263A (en) | 1979-05-30 | 1979-05-30 | Read-in and write-in system for magnetic disc |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6728979A JPS55159263A (en) | 1979-05-30 | 1979-05-30 | Read-in and write-in system for magnetic disc |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55159263A true JPS55159263A (en) | 1980-12-11 |
Family
ID=13340663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6728979A Pending JPS55159263A (en) | 1979-05-30 | 1979-05-30 | Read-in and write-in system for magnetic disc |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55159263A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5665257A (en) * | 1979-11-01 | 1981-06-02 | Casio Comput Co Ltd | Data transfer system between external memory devices |
JPS5818763A (en) * | 1981-07-24 | 1983-02-03 | Nec Corp | File controlling device having data transfer path to another file controlling device inbetween |
JPS6217829A (en) * | 1985-07-17 | 1987-01-26 | Nec Corp | Magnetic disk control system |
-
1979
- 1979-05-30 JP JP6728979A patent/JPS55159263A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5665257A (en) * | 1979-11-01 | 1981-06-02 | Casio Comput Co Ltd | Data transfer system between external memory devices |
JPS5818763A (en) * | 1981-07-24 | 1983-02-03 | Nec Corp | File controlling device having data transfer path to another file controlling device inbetween |
JPS6217829A (en) * | 1985-07-17 | 1987-01-26 | Nec Corp | Magnetic disk control system |
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