JPS5585963A - Key search access system - Google Patents

Key search access system

Info

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
Application number
JP16062478A
Other languages
Japanese (ja)
Inventor
Giichi Hamada
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16062478A priority Critical patent/JPS5585963A/en
Publication of JPS5585963A publication Critical patent/JPS5585963A/en
Pending legal-status Critical Current

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
JP16062478A 1978-12-21 1978-12-21 Key search access system Pending JPS5585963A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (2)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JPS53141517A (en) Regenerative system of stored record
KR890001058A (en) Track access control system for magnetic disk device
JPS5585963A (en) Key search access system
JPS543504A (en) Address signal searching syste of information recording medium reproducer
JPS5242032A (en) Data processing unit
JPS54128229A (en) Magnetic disk control unit containing data buffer
JPS5534314A (en) Key memory system
JPS5543685A (en) High-speed writing system
JPS53118915A (en) Storage reproducing system
JPS5436140A (en) Control unit for magnetic disc
JPS57169983A (en) Buffer managing system
JPS55129838A (en) Program control system
JPS564843A (en) Address conversion system
JPS559201A (en) Buffer memory control system
JPS53135232A (en) Main memory control system
JPS5475231A (en) Buffer memory control system
JPS57121730A (en) Character generator controlling system
JPS53116041A (en) System controller
JPS551666A (en) Magnetic tape unit
JPS5368145A (en) Data base system using associative file memory unit
JPS57125452A (en) System for control of magnetic disc
JPS5432033A (en) Page replacement control system
JPS5431236A (en) State information recorcing system
JPS5286303A (en) Recording and reproducing system for magnetic tape
JPS57111645A (en) Input-output control system