DE1499687B2 - Speicherschutz-einrichtung - Google Patents

Speicherschutz-einrichtung

Info

Publication number
DE1499687B2
DE1499687B2 DE1966J0030752 DEJ0030752A DE1499687B2 DE 1499687 B2 DE1499687 B2 DE 1499687B2 DE 1966J0030752 DE1966J0030752 DE 1966J0030752 DE J0030752 A DEJ0030752 A DE J0030752A DE 1499687 B2 DE1499687 B2 DE 1499687B2
Authority
DE
Germany
Prior art keywords
memory
register
command
access
output
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
DE1966J0030752
Other languages
German (de)
English (en)
Other versions
DE1499687A1 (de
Inventor
William Frances Le Cap d"Antibes Alpes Maritimes Beausoleil (Frankreich), Clarke 4th, William Albert, Wappingers Falls, N Y , Hill, Peter Rohrbach, Santa Monica, Calif, Smith, Ronald Morton, Poughkeepsie, N Y , (V St A )
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
Publication of DE1499687A1 publication Critical patent/DE1499687A1/de
Publication of DE1499687B2 publication Critical patent/DE1499687B2/de
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/14—Protection against unauthorised use of memory or access to memory
    • G06F12/1416—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
    • G06F12/1425—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block
    • G06F12/1441—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block for a range
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F13/10—Program control for peripheral devices
    • G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
    • G06F13/122—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor where hardware performs an I/O function other than control of data transfer
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
    • G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
    • G06F7/50—Adding; Subtracting

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computational Mathematics (AREA)
  • Computing Systems (AREA)
  • Mathematical Optimization (AREA)
  • Computer Security & Cryptography (AREA)
  • Storage Device Security (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
DE1966J0030752 1965-05-12 1966-05-05 Speicherschutz-einrichtung Granted DE1499687B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US455058A US3368207A (en) 1965-05-12 1965-05-12 File protection to i/o storage

Publications (2)

Publication Number Publication Date
DE1499687A1 DE1499687A1 (de) 1970-04-30
DE1499687B2 true DE1499687B2 (de) 1973-06-20

Family

ID=23807213

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1966J0030752 Granted DE1499687B2 (de) 1965-05-12 1966-05-05 Speicherschutz-einrichtung

Country Status (6)

Country Link
US (1) US3368207A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH456205A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1499687B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1142465A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6606475A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
SE (1) SE341935B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2512935A1 (de) * 1974-03-25 1975-10-09 Innovation Ste Int System zur speicherung von daten in einem unabhaengigen, tragbaren gegenstand
DE2926013A1 (de) * 1979-06-27 1981-01-08 Siemens Ag Verfahren zur ausgabe eines nachrichtentextes an einen empfangsbefugten personenkreis
DE3635409A1 (de) * 1985-11-30 1987-06-04 Toshiba Kawasaki Kk Tragbare elektronische vorrichtung

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447135A (en) * 1966-08-18 1969-05-27 Ibm Peripheral data exchange
US3581287A (en) * 1969-02-10 1971-05-25 Sanders Associates Inc Apparatus for altering computer memory by bit, byte or word
US3689893A (en) * 1969-05-09 1972-09-05 Olivetti & Co Spa Accounting machine processor
US3670309A (en) * 1969-12-23 1972-06-13 Ibm Storage control system
GB1414126A (en) * 1971-11-22 1975-11-19 Key Tronic Ltd Secutity for computer systems
US3931504A (en) * 1972-02-07 1976-01-06 Basic Computing Arts, Inc. Electronic data processing security system and method
US3818456A (en) * 1972-10-06 1974-06-18 Vidar Corp Message metering system
US4135240A (en) * 1973-07-09 1979-01-16 Bell Telephone Laboratories, Incorporated Protection of data file contents
US3890601A (en) * 1974-03-11 1975-06-17 Philco Ford Corp Password operated system for preventing unauthorized or accidental computer memory alteration
US4045781A (en) * 1976-02-13 1977-08-30 Digital Equipment Corporation Memory module with selectable byte addressing for digital data processing system
JPS5362945A (en) * 1976-11-17 1978-06-05 Toshiba Corp Disc address system
US4158227A (en) * 1977-10-12 1979-06-12 Bunker Ramo Corporation Paged memory mapping with elimination of recurrent decoding
US4296466A (en) * 1978-01-23 1981-10-20 Data General Corporation Data processing system including a separate input/output processor with micro-interrupt request apparatus
US4262332A (en) * 1978-12-28 1981-04-14 International Business Machines Corporation Command pair to improve performance and device independence
US4471457A (en) * 1980-08-21 1984-09-11 International Business Machines Corporation Supervisory control of peripheral subsystems
FR2528196B1 (fr) * 1982-06-07 1988-05-27 Fortune Systems Corp Appareil de protection de programmes d'ordinateur
US4633388A (en) * 1984-01-18 1986-12-30 Siemens Corporate Research & Support, Inc. On-chip microprocessor instruction decoder having hardware for selectively bypassing on-chip circuitry used to decipher encrypted instruction codes
GB8524455D0 (en) * 1985-10-03 1985-11-06 Isolation Systems Ltd Monitoring activity of peripheral devices
US4757533A (en) * 1985-09-11 1988-07-12 Computer Security Corporation Security system for microcomputers
GB2181281B (en) * 1985-10-03 1989-09-13 Isolation Systems Limited Device for controlling access to computer peripherals
US4809218A (en) * 1986-01-29 1989-02-28 Digital Equipment Corporation Apparatus and method for increased system bus utilization in a data processing system
EP0470163A1 (en) * 1989-04-28 1992-02-12 COWSLEY, Christopher William Improved security for machine-writeable data storage systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL233967A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1957-12-09
US3264615A (en) * 1962-12-11 1966-08-02 Ibm Memory protection system
US3283308A (en) * 1963-06-10 1966-11-01 Beckman Instruments Inc Data processing system with autonomous input-output control
US3298001A (en) * 1964-05-04 1967-01-10 Gen Electric Data processing unit for providing selective memory addressing by external apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2512935A1 (de) * 1974-03-25 1975-10-09 Innovation Ste Int System zur speicherung von daten in einem unabhaengigen, tragbaren gegenstand
DE2512935C2 (de) * 1974-03-25 1985-06-05 Société Internationale pour l'Innovation, Paris Datenaustauschsystem
DE2560689C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1974-03-25 1993-05-13 Societe Internationale Pour L'innovation, Paris, Fr
DE2560688C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1974-03-25 1993-05-13 Societe Internationale Pour L'innovation, Paris, Fr
DE2926013A1 (de) * 1979-06-27 1981-01-08 Siemens Ag Verfahren zur ausgabe eines nachrichtentextes an einen empfangsbefugten personenkreis
DE3635409A1 (de) * 1985-11-30 1987-06-04 Toshiba Kawasaki Kk Tragbare elektronische vorrichtung

Also Published As

Publication number Publication date
US3368207A (en) 1968-02-06
GB1142465A (en) 1969-02-05
DE1499687A1 (de) 1970-04-30
CH456205A (de) 1968-05-15
NL6606475A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-11-14
SE341935B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1972-01-17

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Legal Events

Date Code Title Description
SH Request for examination between 03.10.1968 and 22.04.1971
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee