FR79630E - Magnetic data recording method and apparatus - Google Patents

Magnetic data recording method and apparatus

Info

Publication number
FR79630E
FR79630E FR856256A FR856256A FR79630E FR 79630 E FR79630 E FR 79630E FR 856256 A FR856256 A FR 856256A FR 856256 A FR856256 A FR 856256A FR 79630 E FR79630 E FR 79630E
Authority
FR
France
Prior art keywords
data recording
recording method
magnetic data
magnetic
recording
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
FR856256A
Other languages
French (fr)
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
Priority claimed from US16434A external-priority patent/US3219979A/en
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to FR856256A priority Critical patent/FR79630E/en
Application granted granted Critical
Publication of FR79630E publication Critical patent/FR79630E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/14—Handling requests for interconnection or transfer
    • G06F13/16—Handling requests for interconnection or transfer for access to memory bus

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
FR856256A 1960-03-21 1961-03-21 Magnetic data recording method and apparatus Expired FR79630E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR856256A FR79630E (en) 1960-03-21 1961-03-21 Magnetic data recording method and apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16434A US3219979A (en) 1960-03-21 1960-03-21 Free access control
FR856256A FR79630E (en) 1960-03-21 1961-03-21 Magnetic data recording method and apparatus

Publications (1)

Publication Number Publication Date
FR79630E true FR79630E (en) 1962-12-28

Family

ID=26189760

Family Applications (1)

Application Number Title Priority Date Filing Date
FR856256A Expired FR79630E (en) 1960-03-21 1961-03-21 Magnetic data recording method and apparatus

Country Status (1)

Country Link
FR (1) FR79630E (en)

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