JPS5499535A - Disk unit containing timing device - Google Patents

Disk unit containing timing device

Info

Publication number
JPS5499535A
JPS5499535A JP643178A JP643178A JPS5499535A JP S5499535 A JPS5499535 A JP S5499535A JP 643178 A JP643178 A JP 643178A JP 643178 A JP643178 A JP 643178A JP S5499535 A JPS5499535 A JP S5499535A
Authority
JP
Japan
Prior art keywords
data
access time
unit
time
data block
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
JP643178A
Other languages
Japanese (ja)
Inventor
Asao Kaneko
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 JP643178A priority Critical patent/JPS5499535A/en
Publication of JPS5499535A publication Critical patent/JPS5499535A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To present the access time of the previous time as part of the control information at the data access time and thus the user can decide the oldness of the data based on the control information.
CONSTITUTION: Data read/write unit 4 reveives the data writing indication signal and the writing data block from the computer via junction unit 5 to write the data block into the designated disc address. At the same time, the time given from timing device 7 is converted 6 into the memory formation to be transferred to unit 4. Unit 4 writes this access time into access time recording discs 11W1n against the corredponding data block. In case unit 4 receives the data reading indication signal, it reads out the corresponding data block from the designated disc address and also reads out the access time of the corresponding block from discs 11W1n which record the access time.
COPYRIGHT: (C)1979,JPO&Japio
JP643178A 1978-01-23 1978-01-23 Disk unit containing timing device Pending JPS5499535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP643178A JPS5499535A (en) 1978-01-23 1978-01-23 Disk unit containing timing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP643178A JPS5499535A (en) 1978-01-23 1978-01-23 Disk unit containing timing device

Publications (1)

Publication Number Publication Date
JPS5499535A true JPS5499535A (en) 1979-08-06

Family

ID=11638195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP643178A Pending JPS5499535A (en) 1978-01-23 1978-01-23 Disk unit containing timing device

Country Status (1)

Country Link
JP (1) JPS5499535A (en)

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