JPS5585963A - Key search access system - Google Patents
Key search access systemInfo
- Publication number
- JPS5585963A JPS5585963A JP16062478A JP16062478A JPS5585963A JP S5585963 A JPS5585963 A JP S5585963A JP 16062478 A JP16062478 A JP 16062478A JP 16062478 A JP16062478 A JP 16062478A JP S5585963 A JPS5585963 A JP S5585963A
- Authority
- JP
- Japan
- Prior art keywords
- track
- key
- search
- command
- interpreter
- 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
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
PURPOSE: To reduce the search time, by designating the track area to be searched and performing the key search only at the track.
CONSTITUTION: The channel interface CIF of the input and output control unit IOC receives the command and inputs it to the command interpreter CM. When the command is interpreted as the area designation of key search, the interpreter CM transfers the track information of the disc memory unit to the track information memory unit TBM and stored, and also, the key information is stored in the buffer KM. To the unit TBM, the head track and end track of each area of the key search are stored. When the interpreter CM interpretes the seek command, the disc DSC positions the magnetic head to the specified cylinder position, the search whether or not the designated key is present is started, and when the desired key is searched, the interruption for the start of transfer of read/write is made.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16062478A JPS5585963A (en) | 1978-12-21 | 1978-12-21 | Key search access system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16062478A JPS5585963A (en) | 1978-12-21 | 1978-12-21 | Key search access system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5585963A true JPS5585963A (en) | 1980-06-28 |
Family
ID=15718949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16062478A Pending JPS5585963A (en) | 1978-12-21 | 1978-12-21 | Key search access system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5585963A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5659359A (en) * | 1979-10-19 | 1981-05-22 | Hitachi Ltd | Disk information retrieval system |
CN104632243A (en) * | 2015-01-09 | 2015-05-20 | 葛洲坝集团第五工程有限公司 | Construction waste slag removing system and method for open type heading machine |
-
1978
- 1978-12-21 JP JP16062478A patent/JPS5585963A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5659359A (en) * | 1979-10-19 | 1981-05-22 | Hitachi Ltd | Disk information retrieval system |
CN104632243A (en) * | 2015-01-09 | 2015-05-20 | 葛洲坝集团第五工程有限公司 | Construction waste slag removing system and method for open type heading machine |
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