JPS52155022A - Magnetic disc memory control unit - Google Patents

Magnetic disc memory control unit

Info

Publication number
JPS52155022A
JPS52155022A JP7113176A JP7113176A JPS52155022A JP S52155022 A JPS52155022 A JP S52155022A JP 7113176 A JP7113176 A JP 7113176A JP 7113176 A JP7113176 A JP 7113176A JP S52155022 A JPS52155022 A JP S52155022A
Authority
JP
Japan
Prior art keywords
control unit
memory control
magnetic disc
disc memory
plural
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.)
Granted
Application number
JP7113176A
Other languages
Japanese (ja)
Other versions
JPS5736616B2 (en
Inventor
Kozo Soneta
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7113176A priority Critical patent/JPS52155022A/en
Publication of JPS52155022A publication Critical patent/JPS52155022A/en
Publication of JPS5736616B2 publication Critical patent/JPS5736616B2/ja
Granted legal-status Critical Current

Links

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  • Multi Processors (AREA)

Abstract

PURPOSE: To obtain the unit where arbitrary different areas on the same magnetic memory can be occupied temporarily by plural processing units or plural programs and plural tasks simultaneously.
COPYRIGHT: (C)1977,JPO&Japio
JP7113176A 1976-06-18 1976-06-18 Magnetic disc memory control unit Granted JPS52155022A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7113176A JPS52155022A (en) 1976-06-18 1976-06-18 Magnetic disc memory control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7113176A JPS52155022A (en) 1976-06-18 1976-06-18 Magnetic disc memory control unit

Publications (2)

Publication Number Publication Date
JPS52155022A true JPS52155022A (en) 1977-12-23
JPS5736616B2 JPS5736616B2 (en) 1982-08-05

Family

ID=13451703

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7113176A Granted JPS52155022A (en) 1976-06-18 1976-06-18 Magnetic disc memory control unit

Country Status (1)

Country Link
JP (1) JPS52155022A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827255A (en) * 1981-08-12 1983-02-17 Hitachi Ltd Controlling system of file used for plural electronic computers in common
JPS58127258A (en) * 1982-01-25 1983-07-29 Hitachi Ltd Exclusive controlling system of external storage device
JPS58178455A (en) * 1982-04-14 1983-10-19 Hitachi Ltd Exclusive control system for shared file

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50115938A (en) * 1974-02-22 1975-09-10
JPS50151036A (en) * 1974-05-23 1975-12-04

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50115938A (en) * 1974-02-22 1975-09-10
JPS50151036A (en) * 1974-05-23 1975-12-04

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827255A (en) * 1981-08-12 1983-02-17 Hitachi Ltd Controlling system of file used for plural electronic computers in common
JPH0115899B2 (en) * 1981-08-12 1989-03-22 Hitachi Ltd
JPS58127258A (en) * 1982-01-25 1983-07-29 Hitachi Ltd Exclusive controlling system of external storage device
JPS58178455A (en) * 1982-04-14 1983-10-19 Hitachi Ltd Exclusive control system for shared file

Also Published As

Publication number Publication date
JPS5736616B2 (en) 1982-08-05

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