CA990412A - File organization on direct access disk device - Google Patents

File organization on direct access disk device

Info

Publication number
CA990412A
CA990412A CA156,421A CA156421A CA990412A CA 990412 A CA990412 A CA 990412A CA 156421 A CA156421 A CA 156421A CA 990412 A CA990412 A CA 990412A
Authority
CA
Canada
Prior art keywords
disk device
direct access
file organization
access disk
organization
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.)
Expired
Application number
CA156,421A
Other languages
English (en)
Inventor
Leslie S. Coleman (Jr.)
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of CA990412A publication Critical patent/CA990412A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B20/1252—Formatting, e.g. arrangement of data block or words on the record carriers on discs for discontinuous data, e.g. digital information signals, computer programme data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
CA156,421A 1971-11-17 1972-11-14 File organization on direct access disk device Expired CA990412A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19969271A 1971-11-17 1971-11-17

Publications (1)

Publication Number Publication Date
CA990412A true CA990412A (en) 1976-06-01

Family

ID=22738615

Family Applications (1)

Application Number Title Priority Date Filing Date
CA156,421A Expired CA990412A (en) 1971-11-17 1972-11-14 File organization on direct access disk device

Country Status (6)

Country Link
JP (1) JPS4860545A (fr)
CA (1) CA990412A (fr)
DE (1) DE2254884A1 (fr)
FR (1) FR2160384B1 (fr)
GB (1) GB1378983A (fr)
IT (1) IT967615B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122409A (ja) * 1974-08-16 1976-02-23 Hitachi Ltd Jikidoramuyointaafueisu
JPS54146539A (en) * 1978-05-09 1979-11-15 Toshiba Corp Process method in response to division of magnetic disk face
JPS62217319A (ja) * 1986-03-18 1987-09-24 Nec Corp デイスク装置アクセス制御方式
JP2650891B2 (ja) * 1986-04-16 1997-09-10 株式会社日立製作所 回転形記憶装置の制御方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL286146A (fr) * 1961-12-26
GB1169506A (en) * 1967-06-23 1969-11-05 Ncr Co Improvements in or relating to Magnetic Memory Systems.

Also Published As

Publication number Publication date
FR2160384B1 (fr) 1977-07-29
DE2254884A1 (de) 1973-05-24
FR2160384A1 (fr) 1973-06-29
GB1378983A (en) 1975-01-02
IT967615B (it) 1974-03-11
JPS4860545A (fr) 1973-08-24

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