JPS6486386A - Magnetic disk device - Google Patents

Magnetic disk device

Info

Publication number
JPS6486386A
JPS6486386A JP24258187A JP24258187A JPS6486386A JP S6486386 A JPS6486386 A JP S6486386A JP 24258187 A JP24258187 A JP 24258187A JP 24258187 A JP24258187 A JP 24258187A JP S6486386 A JPS6486386 A JP S6486386A
Authority
JP
Japan
Prior art keywords
track
fdc
instruction
recording medium
magnetic head
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
JP24258187A
Other languages
Japanese (ja)
Other versions
JP2624705B2 (en
Inventor
Yoshinao Nakamori
Hiroshi Okamura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62242581A priority Critical patent/JP2624705B2/en
Publication of JPS6486386A publication Critical patent/JPS6486386A/en
Application granted granted Critical
Publication of JP2624705B2 publication Critical patent/JP2624705B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To as much uniformize as possible the use frequency of individual tracks and to avoid the deterioration of the whole magnetic recording medium in durability by moving a magnetic head from the final track on completion of recording and reproducing to other optional track by operating a track protection mechanism provided to a recording and reproducing control part. CONSTITUTION:When an instruction is given to an FDC (floppy disk controller) 2 from a CPU 1, while the FDC 2 is outputting a random step pulse, the state of the FDC 2 is Busy as under an engaging condition. For this, the FDC 2 executes the instruction of the CPU 1 after moving optionally the magnetic head 5 by the random step pulse from the FDC 2. When the instruction is a SEEK instruction for positioning the magnetic head 5, the magnetic head 5 is moved by a difference between its optionally moved and stopped positioning track and a specified positioning track. Then, in case of a read/write instruction, the head is returned to a track, with which the recording or reproducing is previously completed, and then the write of a bit of information to the magnetic recording medium 6 or the read of a bit of information from the magnetic recording medium 6 is performed. By this method, the use frequency on the individual tracks of the magnetic recording medium 6 can be uniformized.
JP62242581A 1987-09-29 1987-09-29 Magnetic disk drive Expired - Lifetime JP2624705B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62242581A JP2624705B2 (en) 1987-09-29 1987-09-29 Magnetic disk drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62242581A JP2624705B2 (en) 1987-09-29 1987-09-29 Magnetic disk drive

Publications (2)

Publication Number Publication Date
JPS6486386A true JPS6486386A (en) 1989-03-31
JP2624705B2 JP2624705B2 (en) 1997-06-25

Family

ID=17091191

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62242581A Expired - Lifetime JP2624705B2 (en) 1987-09-29 1987-09-29 Magnetic disk drive

Country Status (1)

Country Link
JP (1) JP2624705B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60157781A (en) * 1984-01-26 1985-08-19 Toshiba Corp Magnetic disc device
JPS61237278A (en) * 1985-04-12 1986-10-22 Toshiba Corp Magnetic disk device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60157781A (en) * 1984-01-26 1985-08-19 Toshiba Corp Magnetic disc device
JPS61237278A (en) * 1985-04-12 1986-10-22 Toshiba Corp Magnetic disk device

Also Published As

Publication number Publication date
JP2624705B2 (en) 1997-06-25

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