JPS6474620A - Program protecting system - Google Patents

Program protecting system

Info

Publication number
JPS6474620A
JPS6474620A JP62233128A JP23312887A JPS6474620A JP S6474620 A JPS6474620 A JP S6474620A JP 62233128 A JP62233128 A JP 62233128A JP 23312887 A JP23312887 A JP 23312887A JP S6474620 A JPS6474620 A JP S6474620A
Authority
JP
Japan
Prior art keywords
program
information
specific program
disk
address
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
JP62233128A
Other languages
Japanese (ja)
Inventor
Hajime Takagi
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP62233128A priority Critical patent/JPS6474620A/en
Publication of JPS6474620A publication Critical patent/JPS6474620A/en
Pending legal-status Critical Current

Links

Landscapes

  • Storage Device Security (AREA)

Abstract

PURPOSE:To easily cope with destruction or the like of memory data by transferring specific program information from a disk where this information is stored, to an information storage memory in accordance with a request and permitting read-out only at the time of judging that this information is effective. CONSTITUTION:A 11 program information memories 2 connected to a service processor 1 are cleared in accordance with a system generation program. Software as a program management program reads out specific program information supplied to a user from a maintenance disk 3 connected to the processor 1, and stored contents of the address corresponding to the code of a specific program in the memory 2 are read by the program instruction corresponding to the code of the specific program at every user system. If stored contents of this address are effective for the user system, the specific program stored on the disk 3 corresponding to this address is loaded to a main storage device 11 and is executed.
JP62233128A 1987-09-16 1987-09-16 Program protecting system Pending JPS6474620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62233128A JPS6474620A (en) 1987-09-16 1987-09-16 Program protecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62233128A JPS6474620A (en) 1987-09-16 1987-09-16 Program protecting system

Publications (1)

Publication Number Publication Date
JPS6474620A true JPS6474620A (en) 1989-03-20

Family

ID=16950184

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62233128A Pending JPS6474620A (en) 1987-09-16 1987-09-16 Program protecting system

Country Status (1)

Country Link
JP (1) JPS6474620A (en)

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