JPS55140923A - Information processing system - Google Patents

Information processing system

Info

Publication number
JPS55140923A
JPS55140923A JP4665979A JP4665979A JPS55140923A JP S55140923 A JPS55140923 A JP S55140923A JP 4665979 A JP4665979 A JP 4665979A JP 4665979 A JP4665979 A JP 4665979A JP S55140923 A JPS55140923 A JP S55140923A
Authority
JP
Japan
Prior art keywords
input
output unit
request
units
processor
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
JP4665979A
Other languages
Japanese (ja)
Inventor
Isao Nakada
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP4665979A priority Critical patent/JPS55140923A/en
Publication of JPS55140923A publication Critical patent/JPS55140923A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bus Control (AREA)

Abstract

PURPOSE: To increase the processing capacity and others of the system by giving the comparison between the discriminating information memorized in the input/output unit and that of the processor which issues the request in case the input/output unit is being reserved and then accepting the request only when the coincidence is obtained through the above comparison.
CONSTITUTION: Input/output control units 6 and 7 are provided among processors 1 and 2 plus input/output units 11W13, and at least processor 1 or 2 is connected to unit 11W13 via unit 6 or 7. At the same time, units 6 and 7 possess discriminating two pieces of information 14 and 15 proper to units 11W13 to be connected to units 6 and 7 plus comparators 22 and 23 each. And the input/output request given to a certain input/output unit from a certain processor is accepted if the input/output unit is not being reserved. While in case the input/output unit is being reserved, the comparison is given between the discriminating information memorized in the input/ output unit and that of the processor which delivers the request. And the request is accepted only when the coincidence is obtained through the above comparison. As a result, the processing capacity and others can be increased for the system.
COPYRIGHT: (C)1980,JPO&Japio
JP4665979A 1979-04-18 1979-04-18 Information processing system Pending JPS55140923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4665979A JPS55140923A (en) 1979-04-18 1979-04-18 Information processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4665979A JPS55140923A (en) 1979-04-18 1979-04-18 Information processing system

Publications (1)

Publication Number Publication Date
JPS55140923A true JPS55140923A (en) 1980-11-04

Family

ID=12753449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4665979A Pending JPS55140923A (en) 1979-04-18 1979-04-18 Information processing system

Country Status (1)

Country Link
JP (1) JPS55140923A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6180347A (en) * 1984-09-26 1986-04-23 Fujitsu Ltd Control system of input/output device
JPS622344A (en) * 1985-06-27 1987-01-08 Canon Inc Information transmission equipment
JPS63307565A (en) * 1987-06-09 1988-12-15 Fujitsu Ltd Channel processor
JPH01109464A (en) * 1987-10-23 1989-04-26 Hitachi Ltd Multi-processor system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178956A (en) * 1974-12-30 1976-07-09 Fujitsu Ltd Kyoyofuairuno kyoseirizaabu reriizuhoshiki
JPS52128031A (en) * 1976-04-21 1977-10-27 Nec Corp Test and set method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5178956A (en) * 1974-12-30 1976-07-09 Fujitsu Ltd Kyoyofuairuno kyoseirizaabu reriizuhoshiki
JPS52128031A (en) * 1976-04-21 1977-10-27 Nec Corp Test and set method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6180347A (en) * 1984-09-26 1986-04-23 Fujitsu Ltd Control system of input/output device
JPS622344A (en) * 1985-06-27 1987-01-08 Canon Inc Information transmission equipment
JPS63307565A (en) * 1987-06-09 1988-12-15 Fujitsu Ltd Channel processor
JPH0528859B2 (en) * 1987-06-09 1993-04-27 Fujitsu Ltd
JPH01109464A (en) * 1987-10-23 1989-04-26 Hitachi Ltd Multi-processor system

Similar Documents

Publication Publication Date Title
JPS55140923A (en) Information processing system
JPS5318931A (en) Information processor
JPS5334442A (en) Multi-processor system
JPS5635254A (en) Processor back-up system
JPS54156433A (en) Buffer memory control system
JPS5713565A (en) Synchronizing method of multiprocessor computer system
JPS55112624A (en) Diagnosis unit for input and output bus and input and output device
JPS5299737A (en) Multi computer control system
JPS5271147A (en) Common panel control system for data processing unit
JPS53113443A (en) Information processing system
JPS57206974A (en) Shared memory control circuit
JPS51113431A (en) Coupling control system between input-output buses
JPS5356936A (en) Transfer control system
JPS5278336A (en) On-line processing system
JPS5248944A (en) Information processing system control system
JPS5252338A (en) Allotting device of input/output unit machine number
JPS5211729A (en) Information processing unit
JPS56121168A (en) Common resource control system of multiple central processing unit system etc
JPS54121031A (en) Information processor
JPS5219928A (en) Interrupt processing unit in multi-computer system
JPS55105723A (en) Data input circuit
JPS5278328A (en) Input/output unit sharing system
JPS53140948A (en) Interrupt processing system
JPS54160146A (en) Terminal control unit
JPS5553723A (en) Input/output interruption control system