JPS57109078A - Multiple computer system - Google Patents

Multiple computer system

Info

Publication number
JPS57109078A
JPS57109078A JP55185914A JP18591480A JPS57109078A JP S57109078 A JPS57109078 A JP S57109078A JP 55185914 A JP55185914 A JP 55185914A JP 18591480 A JP18591480 A JP 18591480A JP S57109078 A JPS57109078 A JP S57109078A
Authority
JP
Japan
Prior art keywords
systems
computer
computer system
computer systems
detecting circuits
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
JP55185914A
Other languages
Japanese (ja)
Inventor
Koichi Matsumoto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP55185914A priority Critical patent/JPS57109078A/en
Publication of JPS57109078A publication Critical patent/JPS57109078A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Hardware Redundancy (AREA)
  • Multi Processors (AREA)

Abstract

PURPOSE:To improve the reliability of computer systems by synthronizing those systems with each other by providing each computer system with an oscillating circuit and by supplying a mutual clock signal to each processor at need. CONSTITUTION:Computer systems 11 and 12 constituting a multiple computer system are provided with oscillators 11b and 12b each generating a clock signal, processors 11a and 12a, and fault detecting circuits 11c and 12c. Those detecting circuits 11c and 12c monitor the operation of the whole computer system, and pieces of information on in-use and stand-by modes are inputted to the processors 11a and 12a all the time, so that the detecting circuits 11c and 12c prevent both the computer systems 11 and 12 from serving as in-use systems simultaneously. When the processor 11a or 12a is the in-use system, it operates synchronizing with the clock of the oscillator 11a or 12a of its system and when the stand-by system, it operates synchronizing with the clock of the oscillator 11a or 12a of the other system, thus syncrhonizing the computer systems 11 and 12 with each other.
JP55185914A 1980-12-26 1980-12-26 Multiple computer system Pending JPS57109078A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55185914A JPS57109078A (en) 1980-12-26 1980-12-26 Multiple computer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55185914A JPS57109078A (en) 1980-12-26 1980-12-26 Multiple computer system

Publications (1)

Publication Number Publication Date
JPS57109078A true JPS57109078A (en) 1982-07-07

Family

ID=16179082

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55185914A Pending JPS57109078A (en) 1980-12-26 1980-12-26 Multiple computer system

Country Status (1)

Country Link
JP (1) JPS57109078A (en)

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