JPS55159265A - Information processor - Google Patents
Information processorInfo
- Publication number
- JPS55159265A JPS55159265A JP6915679A JP6915679A JPS55159265A JP S55159265 A JPS55159265 A JP S55159265A JP 6915679 A JP6915679 A JP 6915679A JP 6915679 A JP6915679 A JP 6915679A JP S55159265 A JPS55159265 A JP S55159265A
- Authority
- JP
- Japan
- Prior art keywords
- data processing
- bus
- switching
- circuit
- data
- 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
Links
Landscapes
- Multi Processors (AREA)
- Hardware Redundancy (AREA)
Abstract
PURPOSE: To reduce the switching time from the spare system to the existing system, by the paralel running of the same data processing for the spare and existing systems with the data processing circuit.
CONSTITUTION: Input circuits 1-1W1-n, output circuits 5-1W5-m are connected to the bus 1a for data reception and transmission. The bus 1a is connected to the switching circuit 6, which is connected to the data processing circuits 7-1, 7-2 and monitor circuits 4-1, 4-2 for switching control and data transfer control. When the data processing circuit 7-1 is present in the spare system and the data processing circuit 7-2 is in the existing system, 7-1 does not make output processing outputting the data to the bus 1a via the switching circuit 6, but executes the same internal processing and input processing as 7-2, and when it receives the switching signal, the switching circuit 6 switch the connection of the bus 1a to the data processing circuit 7-1.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6915679A JPS55159265A (en) | 1979-05-30 | 1979-05-30 | Information processor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6915679A JPS55159265A (en) | 1979-05-30 | 1979-05-30 | Information processor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55159265A true JPS55159265A (en) | 1980-12-11 |
Family
ID=13394526
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6915679A Pending JPS55159265A (en) | 1979-05-30 | 1979-05-30 | Information processor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55159265A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63159945A (en) * | 1986-12-24 | 1988-07-02 | Hitachi Ltd | Duplex computer system |
-
1979
- 1979-05-30 JP JP6915679A patent/JPS55159265A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63159945A (en) * | 1986-12-24 | 1988-07-02 | Hitachi Ltd | Duplex computer system |
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