JPS6425263A - Electronic equipment - Google Patents

Electronic equipment

Info

Publication number
JPS6425263A
JPS6425263A JP62181638A JP18163887A JPS6425263A JP S6425263 A JPS6425263 A JP S6425263A JP 62181638 A JP62181638 A JP 62181638A JP 18163887 A JP18163887 A JP 18163887A JP S6425263 A JPS6425263 A JP S6425263A
Authority
JP
Japan
Prior art keywords
data
writing
reading
attribute information
prohibition
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.)
Pending
Application number
JP62181638A
Other languages
Japanese (ja)
Inventor
Isamu Haneda
Yoshihiro Shintaku
Yasuo Wada
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP62181638A priority Critical patent/JPS6425263A/en
Publication of JPS6425263A publication Critical patent/JPS6425263A/en
Pending legal-status Critical Current

Links

Landscapes

  • Storage Device Security (AREA)

Abstract

PURPOSE:To attain data protection from other application by giving the attribute information of the prohibition of reading and writing to respective data. CONSTITUTION:Respective pieces of attribute information are given to respective data, and an inherent code 9 inherently given to respective applications and an attribute bit 10 indicating the reading prohibition and the writing prohibition are mounted at the attribute information. Thus, when the application reads and writes the data, by checking the attribute information of said data and judging whether or not the reading and the writing are permitted, the reading and the writing of the other application data can be prohibited. Further, when a code common to the other applications is written into the inherent code 9, the reading and the writing from the other applications can be attained.
JP62181638A 1987-07-20 1987-07-20 Electronic equipment Pending JPS6425263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62181638A JPS6425263A (en) 1987-07-20 1987-07-20 Electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62181638A JPS6425263A (en) 1987-07-20 1987-07-20 Electronic equipment

Publications (1)

Publication Number Publication Date
JPS6425263A true JPS6425263A (en) 1989-01-27

Family

ID=16104259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62181638A Pending JPS6425263A (en) 1987-07-20 1987-07-20 Electronic equipment

Country Status (1)

Country Link
JP (1) JPS6425263A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06202959A (en) * 1992-10-13 1994-07-22 Konami Kk External memory controller for image forming device
US6724554B1 (en) 1995-03-10 2004-04-20 Iomega Corporation Read/write protect scheme for a disk cartridge and drive
JP2004272595A (en) * 2003-03-07 2004-09-30 Ntt Docomo Inc Communication system, server, mobile apparatus, program, and recording medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06202959A (en) * 1992-10-13 1994-07-22 Konami Kk External memory controller for image forming device
US6724554B1 (en) 1995-03-10 2004-04-20 Iomega Corporation Read/write protect scheme for a disk cartridge and drive
JP2004272595A (en) * 2003-03-07 2004-09-30 Ntt Docomo Inc Communication system, server, mobile apparatus, program, and recording medium

Similar Documents

Publication Publication Date Title
DE3681843D1 (en) CHIP CARD SYSTEM.
JPS6425263A (en) Electronic equipment
ES535008A0 (en) COMPUTER INSTALLATION.
JPS5231626A (en) Magnetic bubble cassette memory
JPS5725052A (en) Memory control device
JPS57200984A (en) Information stack system
JPS56124961A (en) Information processing equipment
JPS5371536A (en) Data input system
JPS6459486A (en) Card module
JPS5712498A (en) Integrated circuit device for memory
JPS5619598A (en) Memory error control unit
Bonjean Sr Fundamental option in the theology of Karl Rahner and its relationship to moral development
JPS5310412A (en) Erroneous data-writing operation preventive system
JPS55119753A (en) Information input method in electronic computer system
Morillo Some strategies for improving the present state of quality control methods in Venezuelan metalworking industries
JPS51131237A (en) Electronic register
JPS6461837A (en) Memory control system
JPS56124199A (en) Data processing device
KR850007126A (en) Ruled line editing method of word processor
JPS57189399A (en) Storage protection device
JPS649552A (en) Illegal use preventing system for external storage medium
JPS57111873A (en) Multi-address memory circuit
JPS57185559A (en) Small-sized electronic calculator with rpogram
JPS56105546A (en) Memory mapping circuit
JPS6473437A (en) Memory write protection circuit