BR7501395A - Computador digital - Google Patents

Computador digital

Info

Publication number
BR7501395A
BR7501395A BR1395/75A BR7501395A BR7501395A BR 7501395 A BR7501395 A BR 7501395A BR 1395/75 A BR1395/75 A BR 1395/75A BR 7501395 A BR7501395 A BR 7501395A BR 7501395 A BR7501395 A BR 7501395A
Authority
BR
Brazil
Prior art keywords
digital computer
digital
computer
Prior art date
Application number
BR1395/75A
Other languages
English (en)
Inventor
J Pietrolewicz
Original Assignee
Philco Ford 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 Philco Ford Corp filed Critical Philco Ford Corp
Publication of BR7501395A publication Critical patent/BR7501395A/pt

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/80—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in storage media based on magnetic or optical technology, e.g. disks with sectors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/30—Individual registration on entry or exit not involving the use of a pass
    • G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
    • G07C9/33—Individual registration on entry or exit not involving the use of a pass in combination with an identity check by means of a password

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Storage Device Security (AREA)
BR1395/75A 1974-03-11 1975-03-10 Computador digital BR7501395A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US449835A US3890601A (en) 1974-03-11 1974-03-11 Password operated system for preventing unauthorized or accidental computer memory alteration

Publications (1)

Publication Number Publication Date
BR7501395A true BR7501395A (pt) 1975-12-09

Family

ID=23785693

Family Applications (1)

Application Number Title Priority Date Filing Date
BR1395/75A BR7501395A (pt) 1974-03-11 1975-03-10 Computador digital

Country Status (2)

Country Link
US (1) US3890601A (pt)
BR (1) BR7501395A (pt)

Families Citing this family (48)

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DE2838063A1 (de) * 1978-08-31 1980-03-13 Siemens Ag Textbearbeitungseinrichtung
CA1183276A (en) * 1981-11-25 1985-02-26 Charles B. Heffron Method for identifying a system-allied physically separable program memory and a data processing system utilizing said method
DE3320378A1 (de) * 1982-06-07 1983-12-15 Fortune Systems Corp Programmschutzvorrichtung fuer computerprogramme
US4574346A (en) * 1982-09-29 1986-03-04 International Business Machines Corporation Method and apparatus for peripheral data handling hierarchies
US4638425A (en) * 1982-09-29 1987-01-20 International Business Machines Corporation Peripheral data storage having access controls with error recovery
JPS59123002A (ja) * 1982-12-29 1984-07-16 Fanuc Ltd 数値制御装置のフアイル保護方式
JPS60246451A (ja) * 1984-05-22 1985-12-06 Sharp Corp 小型情報処理装置
DE3511674A1 (de) * 1985-03-29 1986-10-02 Hermann 7742 St Georgen Stockburger System mit einem geraet mit einer datenverarbeitungseinrichtung
US4959860A (en) * 1989-02-07 1990-09-25 Compaq Computer Corporation Power-on password functions for computer system
US4937864A (en) * 1989-04-27 1990-06-26 Xerox Corporation Debug routine accessing system
EP0449242A3 (en) * 1990-03-28 1992-10-28 National Semiconductor Corporation Method and structure for providing computer security and virus prevention
US6175312B1 (en) 1990-05-29 2001-01-16 Microchip Technology Incorporated Encoder and decoder microchips and remote control devices for secure unidirectional communication
US5173940A (en) * 1991-06-21 1992-12-22 Compaq Computer Corporation Keyboard activated screen blanking
US5375243A (en) * 1991-10-07 1994-12-20 Compaq Computer Corporation Hard disk password security system
JP3065738B2 (ja) * 1991-10-11 2000-07-17 株式会社東芝 コンピュータシステム
DE4232024C2 (de) * 1991-10-11 1997-03-27 Toshiba Kawasaki Kk Computer mit kennwortverarbeitender Funktion und Verfahren zur Kennwortverarbeitung bei einem Computer
US5544083A (en) * 1992-04-27 1996-08-06 Kabushiki Kaisha Toshiba Password management method and apparatus
JPH07200767A (ja) * 1993-12-28 1995-08-04 Mitsubishi Electric Corp メモリカード
US5963142A (en) * 1995-03-03 1999-10-05 Compaq Computer Corporation Security control for personal computer
US5644444A (en) * 1995-03-10 1997-07-01 Iomega Corporation Read/write protect scheme for a disk cartridge and drive
US6724554B1 (en) 1995-03-10 2004-04-20 Iomega Corporation Read/write protect scheme for a disk cartridge and drive
US7492905B2 (en) 1995-05-17 2009-02-17 The Chamberlain Group, Inc. Rolling code security system
US6690796B1 (en) 1995-05-17 2004-02-10 The Chamberlain Group, Inc. Rolling code security system
BR9606663A (pt) 1995-05-17 1997-09-16 Chamberlain Group Inc Transmissor para enviar um sinal criptografado para controlar um atuador receptor para receber um sinal criptografado de um transmissor e para gerar um sinal de atuação e receptor para receber um sinal de frequência de rádio criptografado de um transmissor e para gerar um sinal de atuação
US6980655B2 (en) * 2000-01-21 2005-12-27 The Chamberlain Group, Inc. Rolling code security system
EP0770997A3 (en) * 1995-10-27 1998-01-07 Ncr International Inc. Password protection for removable hard drive
US5675321A (en) * 1995-11-29 1997-10-07 Mcbride; Randall C. Personal computer security system
US6363492B1 (en) 1998-04-30 2002-03-26 Compaq Computer Corporation Computer method and apparatus to force boot block recovery
US6240519B1 (en) 1998-04-30 2001-05-29 Compaq Computer Corporation Computer method and apparatus to prompt for administrative password to flash a corrupted non-volatile memory
US6301665B1 (en) 1998-04-30 2001-10-09 Compaq Computer Corporation Security methodology for devices having plug and play capabilities
US6397337B1 (en) 1998-04-30 2002-05-28 Compaq Computer Corporation Unified password prompt of a computer system
US6138240A (en) * 1998-06-19 2000-10-24 Compaq Computer Corporation Secure general purpose input/output pins for protecting computer system resources
KR100342021B1 (ko) 1999-03-12 2002-06-27 윤종용 원격 조정되는 컴퓨터 시스템 및 그것의 작동 방법
KR100342020B1 (ko) 1999-03-12 2002-06-27 윤종용 고유번호를 구비한 원격제어컴퓨터시스템 및 그것의 관리 방법
US7036020B2 (en) 2001-07-25 2006-04-25 Antique Books, Inc Methods and systems for promoting security in a computer system employing attached storage devices
US7925894B2 (en) * 2001-07-25 2011-04-12 Seagate Technology Llc System and method for delivering versatile security, digital rights management, and privacy services
US8422667B2 (en) 2005-01-27 2013-04-16 The Chamberlain Group, Inc. Method and apparatus to facilitate transmission of an encrypted rolling code
US9148409B2 (en) 2005-06-30 2015-09-29 The Chamberlain Group, Inc. Method and apparatus to facilitate message transmission and reception using different transmission characteristics
DE102005014352A1 (de) * 2005-03-24 2006-09-28 Utimaco Safeware Ag Verfahren und Steuervorrichtung zur Steuerung eines Zugriffs eines Computers auf Nutzdaten
EP1746524A1 (de) * 2005-07-22 2007-01-24 Fujitsu Siemens Computers GmbH Verfahren zum Erstellen einer verschlüsselten Sicherungsdatei und Verfahren zum Wiederherstellen von Daten aus dieser Sicherungsdatei bei einem Pocket-PC
US8429724B2 (en) 2006-04-25 2013-04-23 Seagate Technology Llc Versatile access control system
US8028166B2 (en) * 2006-04-25 2011-09-27 Seagate Technology Llc Versatile secure and non-secure messaging
US7539890B2 (en) * 2006-04-25 2009-05-26 Seagate Technology Llc Hybrid computer security clock
DE202015100610U1 (de) 2015-02-09 2015-03-03 Benjamin Bestler Vorrichtung und Speichermedium zum Authentifizieren eines Benutzers
US10652743B2 (en) 2017-12-21 2020-05-12 The Chamberlain Group, Inc. Security system for a moveable barrier operator
US11074773B1 (en) 2018-06-27 2021-07-27 The Chamberlain Group, Inc. Network-based control of movable barrier operators for autonomous vehicles
US11423717B2 (en) 2018-08-01 2022-08-23 The Chamberlain Group Llc Movable barrier operator and transmitter pairing over a network
US10997810B2 (en) 2019-05-16 2021-05-04 The Chamberlain Group, Inc. In-vehicle transmitter training

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368207A (en) * 1965-05-12 1968-02-06 Ibm File protection to i/o storage
US3377624A (en) * 1966-01-07 1968-04-09 Ibm Memory protection system
US3465297A (en) * 1966-09-30 1969-09-02 Control Data Corp Program protection arrangement
US3562717A (en) * 1968-02-23 1971-02-09 Gen Electric System protection apparatus
US3576544A (en) * 1968-10-18 1971-04-27 Ibm Storage protection system
US3609697A (en) * 1968-10-21 1971-09-28 Ibm Program security device
US3585606A (en) * 1969-09-12 1971-06-15 Ibm File protect circuit and method
GB1414126A (en) * 1971-11-22 1975-11-19 Key Tronic Ltd Secutity for computer systems
US3744034A (en) * 1972-01-27 1973-07-03 Perkin Elmer Corp Method and apparatus for providing a security system for a computer

Also Published As

Publication number Publication date
US3890601A (en) 1975-06-17

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