JPS5692619A - Coupling method of electronic computer and direct memory access device - Google Patents

Coupling method of electronic computer and direct memory access device

Info

Publication number
JPS5692619A
JPS5692619A JP16921079A JP16921079A JPS5692619A JP S5692619 A JPS5692619 A JP S5692619A JP 16921079 A JP16921079 A JP 16921079A JP 16921079 A JP16921079 A JP 16921079A JP S5692619 A JPS5692619 A JP S5692619A
Authority
JP
Japan
Prior art keywords
memory access
direct memory
electronic computer
information
access device
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.)
Granted
Application number
JP16921079A
Other languages
Japanese (ja)
Other versions
JPS604498B2 (en
Inventor
Norio Wada
Manabu Iwata
Kenji Shoroji
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 JP54169210A priority Critical patent/JPS604498B2/en
Publication of JPS5692619A publication Critical patent/JPS5692619A/en
Publication of JPS604498B2 publication Critical patent/JPS604498B2/en
Expired legal-status Critical Current

Links

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  • Multi Processors (AREA)
  • Hardware Redundancy (AREA)

Abstract

PURPOSE: To enable to save valuable main memory of an electronic computer, by monitoring the specific information only fed from the direct memory access device in a waiting system to the electronic computer.
CONSTITUTION: The information from information transmitters 3a,...3n is transferred in parallel with two systems of direct memory access devices 2a, 2b, the information of which is transferred to two systems of computers 1a, 1b in parallel. Further, the direct memory access device 2a, 2b and the computers 1a, 1b are in normal stand-by running state with a switching instruction 6 from a switching device 5. With the constitution like this, the necessity of the duplex main memory of information from the direct memory access devices 2a, 2b per the computers 1a, 1b is avoided to enable to save valuable main memory.
COPYRIGHT: (C)1981,JPO&Japio
JP54169210A 1979-12-27 1979-12-27 How to combine an electronic computer and a direct memory access device Expired JPS604498B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54169210A JPS604498B2 (en) 1979-12-27 1979-12-27 How to combine an electronic computer and a direct memory access device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54169210A JPS604498B2 (en) 1979-12-27 1979-12-27 How to combine an electronic computer and a direct memory access device

Publications (2)

Publication Number Publication Date
JPS5692619A true JPS5692619A (en) 1981-07-27
JPS604498B2 JPS604498B2 (en) 1985-02-04

Family

ID=15882236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54169210A Expired JPS604498B2 (en) 1979-12-27 1979-12-27 How to combine an electronic computer and a direct memory access device

Country Status (1)

Country Link
JP (1) JPS604498B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60251443A (en) * 1984-05-28 1985-12-12 Toshiba Corp Backup device of programmable controller

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0513995U (en) * 1991-06-21 1993-02-23 石川島播磨重工業株式会社 Inner pasting structure of concrete container

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60251443A (en) * 1984-05-28 1985-12-12 Toshiba Corp Backup device of programmable controller

Also Published As

Publication number Publication date
JPS604498B2 (en) 1985-02-04

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