JPS55159263A - Read-in and write-in system for magnetic disc - Google Patents

Read-in and write-in system for magnetic disc

Info

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
Application number
JP6728979A
Other languages
Japanese (ja)
Inventor
Toshihiro Makino
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6728979A priority Critical patent/JPS55159263A/en
Publication of JPS55159263A publication Critical patent/JPS55159263A/en
Pending legal-status Critical Current

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
JP6728979A 1979-05-30 1979-05-30 Read-in and write-in system for magnetic disc Pending JPS55159263A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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