KR900019143U - 기억장치의 쓰기 금지장치 - Google Patents

기억장치의 쓰기 금지장치

Info

Publication number
KR900019143U
KR900019143U KR2019890005567U KR890005567U KR900019143U KR 900019143 U KR900019143 U KR 900019143U KR 2019890005567 U KR2019890005567 U KR 2019890005567U KR 890005567 U KR890005567 U KR 890005567U KR 900019143 U KR900019143 U KR 900019143U
Authority
KR
South Korea
Prior art keywords
protection device
memory write
write
memory
protection
Prior art date
Application number
KR2019890005567U
Other languages
English (en)
Other versions
KR940004261Y1 (ko
Inventor
유재영
Original Assignee
금성계전 주식회사
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 금성계전 주식회사 filed Critical 금성계전 주식회사
Priority to KR2019890005567U priority Critical patent/KR940004261Y1/ko
Publication of KR900019143U publication Critical patent/KR900019143U/ko
Application granted granted Critical
Publication of KR940004261Y1 publication Critical patent/KR940004261Y1/ko

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
    • 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; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
    • 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
    • G06F21/79—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 semiconductor storage media, e.g. directly-addressable memories
KR2019890005567U 1989-04-29 1989-04-29 기억장치의 쓰기 금지장치 KR940004261Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019890005567U KR940004261Y1 (ko) 1989-04-29 1989-04-29 기억장치의 쓰기 금지장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019890005567U KR940004261Y1 (ko) 1989-04-29 1989-04-29 기억장치의 쓰기 금지장치

Publications (2)

Publication Number Publication Date
KR900019143U true KR900019143U (ko) 1990-11-08
KR940004261Y1 KR940004261Y1 (ko) 1994-06-25

Family

ID=19285675

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019890005567U KR940004261Y1 (ko) 1989-04-29 1989-04-29 기억장치의 쓰기 금지장치

Country Status (1)

Country Link
KR (1) KR940004261Y1 (ko)

Also Published As

Publication number Publication date
KR940004261Y1 (ko) 1994-06-25

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