JPS6476559A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS6476559A
JPS6476559A JP23263287A JP23263287A JPS6476559A JP S6476559 A JPS6476559 A JP S6476559A JP 23263287 A JP23263287 A JP 23263287A JP 23263287 A JP23263287 A JP 23263287A JP S6476559 A JPS6476559 A JP S6476559A
Authority
JP
Japan
Prior art keywords
magnetic head
magnetic
information
memory device
file memory
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
JP23263287A
Other languages
Japanese (ja)
Inventor
Hideo Fujiwara
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.)
Maxell Holdings Ltd
Original Assignee
Hitachi Maxell 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 Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP23263287A priority Critical patent/JPS6476559A/en
Publication of JPS6476559A publication Critical patent/JPS6476559A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/012—Recording on, or reproducing or erasing from, magnetic disks

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE:To improve the access speed of a file memory device by disposing two sets of magnetic head devices which are independently operatable, writing a magnetic disk with one magnetic head device and reading on the other hand a data array once written with the other magnetic head device. CONSTITUTION:One set of the magnetic heads 4 and 5 disposed opposite to four recording surfaces 1a, 1b, 2a and 2b of the magnetic disks 1 and 2, are disposed to deviate track positions, so as to take their share in recording/ reproducing bits of information to/from an inner circumferential recording area and an outer circumferential area respectively. Positioning controls for the magnetic heads 4 and 5 and each control for write and read are independently carried out by drive devices 6, and when one magnetic head is under dealing with a bit of information to/from the file memory device, the other magnetic head is able to deal with a bit of information to/from a CPU. By this method, an effective access time of the file memory device can be reduced accordingly.
JP23263287A 1987-09-18 1987-09-18 Magnetic disk device Pending JPS6476559A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23263287A JPS6476559A (en) 1987-09-18 1987-09-18 Magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23263287A JPS6476559A (en) 1987-09-18 1987-09-18 Magnetic disk device

Publications (1)

Publication Number Publication Date
JPS6476559A true JPS6476559A (en) 1989-03-22

Family

ID=16942353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23263287A Pending JPS6476559A (en) 1987-09-18 1987-09-18 Magnetic disk device

Country Status (1)

Country Link
JP (1) JPS6476559A (en)

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