IT1051880B - Dispositivo di memorizzazione utilizzante dischi magnetici flessibili - Google Patents

Dispositivo di memorizzazione utilizzante dischi magnetici flessibili

Info

Publication number
IT1051880B
IT1051880B IT30673/75A IT3067375A IT1051880B IT 1051880 B IT1051880 B IT 1051880B IT 30673/75 A IT30673/75 A IT 30673/75A IT 3067375 A IT3067375 A IT 3067375A IT 1051880 B IT1051880 B IT 1051880B
Authority
IT
Italy
Prior art keywords
storage device
flexible magnetic
magnetic discs
discs
flexible
Prior art date
Application number
IT30673/75A
Other languages
English (en)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Application granted granted Critical
Publication of IT1051880B publication Critical patent/IT1051880B/it

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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads from record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
    • 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
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks
    • G11B5/55—Track change, selection or acquisition by displacement of the head
    • G11B5/5521—Track change, selection or acquisition by displacement of the head across disk tracks
IT30673/75A 1975-02-07 1975-12-23 Dispositivo di memorizzazione utilizzante dischi magnetici flessibili IT1051880B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/548,125 US3975769A (en) 1975-02-07 1975-02-07 Storage device utilizing flexible magnetic disks

Publications (1)

Publication Number Publication Date
IT1051880B true IT1051880B (it) 1981-05-20

Family

ID=24187528

Family Applications (1)

Application Number Title Priority Date Filing Date
IT30673/75A IT1051880B (it) 1975-02-07 1975-12-23 Dispositivo di memorizzazione utilizzante dischi magnetici flessibili

Country Status (6)

Country Link
US (1) US3975769A (it)
JP (1) JPS5718263B2 (it)
DE (1) DE2601657A1 (it)
FR (1) FR2300389A1 (it)
GB (1) GB1483706A (it)
IT (1) IT1051880B (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4092681A (en) * 1976-12-20 1978-05-30 International Business Machines Corporation Flexible disk file access mechanism
US4097909A (en) * 1976-12-20 1978-06-27 International Business Machines Corporation Magnetic transducer with inner and outer magnetic medium cooperating surface zones of different convexity
US4131921A (en) * 1977-04-15 1978-12-26 Okidata Corporation Head positioning system for disc files
SE405179B (sv) * 1977-04-19 1978-11-20 Datasaab Ab Sett och anordning for lesning av data
US4148084A (en) * 1977-07-05 1979-04-03 Burroughs Corporation Flexible disk pack, related storage apparatus having disks with circumferential tab segments and associated partition means
DE2732432C2 (de) * 1977-07-18 1988-05-05 Nixdorf Computer Ag, 4790 Paderborn Schwenkarm für einen Magnetplattenspeicher
US4175275A (en) * 1978-05-22 1979-11-20 International Business Machines Corporation R/W Arm that prevents catastrophic failure
JPS5815845B2 (ja) * 1978-07-10 1983-03-28 日本電信電話株式会社 浮上形ヘツド
GB2148578B (en) * 1983-10-17 1986-10-29 Magnetic Peripherals Inc A self-loading magnetic head slider
US4831615A (en) * 1985-01-30 1989-05-16 Nippon Columbia Co., Ltd. Dual differential optical system moving apparatus
JPS61139394U (it) * 1985-02-19 1986-08-29
JP2778333B2 (ja) * 1992-01-31 1998-07-23 日本電気株式会社 磁気記憶装置
US7212377B1 (en) * 2004-03-31 2007-05-01 Western Digital Technologies, Inc. Disk drive having apertures near the ID of a disk stack for allowing airflow to pass through the apertures to reduce disk flutter
US7224551B1 (en) 2004-05-15 2007-05-29 Western Digital Technologies, Inc. Disk drive having apertures aligned near the inner diameter of a disk stack for allowing airflow to pass through the apertures to reduce disk flutter
US20070128400A1 (en) * 2005-12-01 2007-06-07 Sarah Pantaleo Disk divider
US20080055773A1 (en) * 2006-08-29 2008-03-06 Antek Peripherals, Inc. Multi-Platter Flexible Media Disk Drive Arrangement
US10930307B2 (en) * 2019-01-14 2021-02-23 Western Digital Technologies, Inc. Piezoelectric-based locking of actuator elevator mechanism for cold storage data storage device
US11031037B1 (en) * 2020-06-12 2021-06-08 Western Digital Technologies, Inc. System for disk-to-disk access for reduced-head data storage device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838462A (en) * 1973-07-02 1974-09-24 Ibm Partitionable disc memory with flexible discs and conformally suspended head
US3810243A (en) * 1973-07-02 1974-05-07 Ibm Selectively tensioned transducer assembly for operation in compliant relation to individual memory discs of a partitionable aggregate of rotating flexible discs
US3867723A (en) * 1973-11-07 1975-02-18 Ibm Multiple flexible disk file

Also Published As

Publication number Publication date
FR2300389A1 (fr) 1976-09-03
DE2601657A1 (de) 1976-08-19
FR2300389B1 (it) 1978-05-19
JPS5197408A (it) 1976-08-27
JPS5718263B2 (it) 1982-04-15
GB1483706A (en) 1977-08-24
US3975769A (en) 1976-08-17

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