BR7805656A - Arquivo de disco com base oca simetrica e metodo para fabrica-lo - Google Patents

Arquivo de disco com base oca simetrica e metodo para fabrica-lo

Info

Publication number
BR7805656A
BR7805656A BR7805656A BR7805656A BR7805656A BR 7805656 A BR7805656 A BR 7805656A BR 7805656 A BR7805656 A BR 7805656A BR 7805656 A BR7805656 A BR 7805656A BR 7805656 A BR7805656 A BR 7805656A
Authority
BR
Brazil
Prior art keywords
manufacturing
hole base
disc file
symmetric hole
symmetric
Prior art date
Application number
BR7805656A
Other languages
English (en)
Portuguese (pt)
Inventor
M Hatch
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
Publication of BR7805656A publication Critical patent/BR7805656A/pt

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
    • G11B5/54—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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
    • G11B17/30—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records wherein the playing unit is moved according to the location of the selected record
BR7805656A 1977-09-30 1978-08-31 Arquivo de disco com base oca simetrica e metodo para fabrica-lo BR7805656A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83834677A 1977-09-30 1977-09-30

Publications (1)

Publication Number Publication Date
BR7805656A true BR7805656A (pt) 1979-04-17

Family

ID=25276871

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7805656A BR7805656A (pt) 1977-09-30 1978-08-31 Arquivo de disco com base oca simetrica e metodo para fabrica-lo

Country Status (17)

Country Link
JP (1) JPS5455408A (nl)
AR (1) AR221066A1 (nl)
BR (1) BR7805656A (nl)
CA (1) CA1109557A (nl)
CH (1) CH629617A5 (nl)
DE (1) DE2830828A1 (nl)
DK (1) DK151739C (nl)
FI (1) FI67141C (nl)
FR (1) FR2404886A1 (nl)
GB (1) GB2005454B (nl)
IE (1) IE47039B1 (nl)
IT (1) IT1174388B (nl)
NL (1) NL7809812A (nl)
NO (1) NO150255C (nl)
SE (1) SE426112B (nl)
SU (1) SU921475A3 (nl)
ZA (1) ZA784308B (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57191871A (en) * 1981-05-22 1982-11-25 Hitachi Ltd Magnetic disk storing device
EP0222939B1 (en) * 1985-10-31 1991-01-23 International Business Machines Corporation Disk file with in-hub motor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3815150A (en) * 1972-06-23 1974-06-04 Memorex Corp Flexible disc drive

Also Published As

Publication number Publication date
IE47039B1 (en) 1983-11-30
DK151739C (da) 1988-06-13
IT7827411A0 (it) 1978-09-07
IE781537L (en) 1979-03-30
JPS5455408A (en) 1979-05-02
IT1174388B (it) 1987-07-01
DK432678A (da) 1979-03-31
GB2005454A (en) 1979-04-19
DE2830828C3 (nl) 1981-01-15
GB2005454B (en) 1982-02-10
FR2404886B1 (nl) 1984-11-16
NO783288L (no) 1979-04-02
ZA784308B (en) 1980-02-27
NO150255B (no) 1984-06-04
SE7809227L (sv) 1979-03-31
NO150255C (no) 1984-09-12
DK151739B (da) 1987-12-28
SU921475A3 (ru) 1982-04-15
FI67141C (fi) 1985-01-10
NL7809812A (nl) 1979-04-03
FR2404886A1 (fr) 1979-04-27
FI782943A (fi) 1979-03-31
DE2830828B2 (nl) 1980-05-08
AR221066A1 (es) 1980-12-30
CH629617A5 (de) 1982-04-30
DE2830828A1 (de) 1979-04-05
FI67141B (fi) 1984-09-28
CA1109557A (en) 1981-09-22
SE426112B (sv) 1982-12-06
JPS5756151B2 (nl) 1982-11-27

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