DE69027165D1 - Verfahren und Gerät zum Schutz eines Rechnersystems - Google Patents

Verfahren und Gerät zum Schutz eines Rechnersystems

Info

Publication number
DE69027165D1
DE69027165D1 DE69027165T DE69027165T DE69027165D1 DE 69027165 D1 DE69027165 D1 DE 69027165D1 DE 69027165 T DE69027165 T DE 69027165T DE 69027165 T DE69027165 T DE 69027165T DE 69027165 D1 DE69027165 D1 DE 69027165D1
Authority
DE
Germany
Prior art keywords
bios
boot record
master boot
storage device
random access
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 - Fee Related
Application number
DE69027165T
Other languages
English (en)
Other versions
DE69027165T2 (de
Inventor
Richard Bealkowski
John Wiley Blackledge
Doyle Stanfill Cronk
Richard Alan Dayan
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 DE69027165D1 publication Critical patent/DE69027165D1/de
Application granted granted Critical
Publication of DE69027165T2 publication Critical patent/DE69027165T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/4401—Bootstrapping
    • G06F9/4406—Loading of operating system
DE69027165T 1989-08-25 1990-07-04 Verfahren und Gerät zum Schutz eines Rechnersystems Expired - Fee Related DE69027165T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/398,820 US5022077A (en) 1989-08-25 1989-08-25 Apparatus and method for preventing unauthorized access to BIOS in a personal computer system

Publications (2)

Publication Number Publication Date
DE69027165D1 true DE69027165D1 (de) 1996-07-04
DE69027165T2 DE69027165T2 (de) 1996-12-12

Family

ID=23576925

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69027165T Expired - Fee Related DE69027165T2 (de) 1989-08-25 1990-07-04 Verfahren und Gerät zum Schutz eines Rechnersystems
DE4026912A Ceased DE4026912A1 (de) 1989-08-25 1990-08-25 Computersystem

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE4026912A Ceased DE4026912A1 (de) 1989-08-25 1990-08-25 Computersystem

Country Status (17)

Country Link
US (1) US5022077A (de)
EP (1) EP0417889B1 (de)
JP (1) JPH0754463B2 (de)
KR (1) KR930004902B1 (de)
CN (1) CN1017942B (de)
AT (1) ATE138748T1 (de)
AU (1) AU635551B2 (de)
BR (1) BR9004199A (de)
CA (1) CA2020520C (de)
DE (2) DE69027165T2 (de)
GB (1) GB9012948D0 (de)
HK (1) HK203196A (de)
IL (1) IL95229A0 (de)
MX (1) MX171879B (de)
MY (1) MY106706A (de)
NZ (1) NZ234712A (de)
SG (1) SG44409A1 (de)

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EP0417889A2 (de) 1991-03-20
KR910005162A (ko) 1991-03-30
EP0417889A3 (en) 1992-03-18
CN1049923A (zh) 1991-03-13
IL95229A0 (en) 1991-06-10
EP0417889B1 (de) 1996-05-29
GB9012948D0 (en) 1990-08-01
DE69027165T2 (de) 1996-12-12
NZ234712A (en) 1993-04-28
HK203196A (en) 1996-11-15
MX171879B (es) 1993-11-22
KR930004902B1 (ko) 1993-06-10
CN1017942B (zh) 1992-08-19
ATE138748T1 (de) 1996-06-15
JPH0754463B2 (ja) 1995-06-07
MY106706A (en) 1995-07-31
AU635551B2 (en) 1993-03-25
JPH0391838A (ja) 1991-04-17
CA2020520A1 (en) 1991-02-26
AU5999390A (en) 1991-02-28
DE4026912A1 (de) 1991-02-28
BR9004199A (pt) 1991-09-03
SG44409A1 (en) 1997-12-19
US5022077A (en) 1991-06-04

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