JPS5659359A - Disk information retrieval system - Google Patents

Disk information retrieval system

Info

Publication number
JPS5659359A
JPS5659359A JP13417879A JP13417879A JPS5659359A JP S5659359 A JPS5659359 A JP S5659359A JP 13417879 A JP13417879 A JP 13417879A JP 13417879 A JP13417879 A JP 13417879A JP S5659359 A JPS5659359 A JP S5659359A
Authority
JP
Japan
Prior art keywords
record
sector
buffer
disk
circuit
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
JP13417879A
Other languages
Japanese (ja)
Inventor
Tsunemitsu Hirai
Shinichi Nakamura
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 JP13417879A priority Critical patent/JPS5659359A/en
Publication of JPS5659359A publication Critical patent/JPS5659359A/en
Pending legal-status Critical Current

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  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

PURPOSE: To retrieve the whole record of 1 track by one start, by providing the comparison information store buffer in each sector unit in the computer system, continuously reading a record on the disk, and comparing it with a record in the comparison information buffer.
CONSTITUTION: The intrinsic name of a record to be compared is set to the buffer 4, at the same time its record length is set to the register 7, and the number of blocking sectors is set to the register 8. Subsequently, when the disk apparatus 6 is started by a program, the scanning circuit 5 transmits a data continuously by a sector each to the information comparator 3 from the disk. The circuit 3 compares the contents which have been read out by the circuit 5, with the contents of the buffer 4, stops scanning if the record intrinsic names which are set from the n-th byte from the head are matched, displayes the character position in the sector position sector in that case, in the disk address displaying circuit 2, and if they are not matched, the comparison is repeated from the position where the record length shown in the register 7 has been added.
COPYRIGHT: (C)1981,JPO&Japio
JP13417879A 1979-10-19 1979-10-19 Disk information retrieval system Pending JPS5659359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13417879A JPS5659359A (en) 1979-10-19 1979-10-19 Disk information retrieval system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13417879A JPS5659359A (en) 1979-10-19 1979-10-19 Disk information retrieval system

Publications (1)

Publication Number Publication Date
JPS5659359A true JPS5659359A (en) 1981-05-22

Family

ID=15122260

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13417879A Pending JPS5659359A (en) 1979-10-19 1979-10-19 Disk information retrieval system

Country Status (1)

Country Link
JP (1) JPS5659359A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810254A (en) * 1981-07-10 1983-01-20 Canon Inc Data processor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5144850A (en) * 1974-10-15 1976-04-16 Ricoh Kk
JPS5585963A (en) * 1978-12-21 1980-06-28 Fujitsu Ltd Key search access system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5144850A (en) * 1974-10-15 1976-04-16 Ricoh Kk
JPS5585963A (en) * 1978-12-21 1980-06-28 Fujitsu Ltd Key search access system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810254A (en) * 1981-07-10 1983-01-20 Canon Inc Data processor
JPH0365570B2 (en) * 1981-07-10 1991-10-14

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