JPS5617457A - File data processor - Google Patents

File data processor

Info

Publication number
JPS5617457A
JPS5617457A JP9406679A JP9406679A JPS5617457A JP S5617457 A JPS5617457 A JP S5617457A JP 9406679 A JP9406679 A JP 9406679A JP 9406679 A JP9406679 A JP 9406679A JP S5617457 A JPS5617457 A JP S5617457A
Authority
JP
Japan
Prior art keywords
data processor
data
file data
file
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
JP9406679A
Other languages
Japanese (ja)
Inventor
Takuo Ishizuka
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 JP9406679A priority Critical patent/JPS5617457A/en
Publication of JPS5617457A publication Critical patent/JPS5617457A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a file data processor that provides high-speed retrieval processing by setting various comparison conditions for one piece of information and then by making simultaneous comparisons.
CONSTITUTION: Processor (CPU)1 is connected to main memory unit (MS)5 and file unit (DSC)3 such as a magnetic disk unit through channel (CH)2. Between CH2 and DSC3, file data processor (FDU)4 is connected. Then, FDU4 retrieves only data, meeting various conditions, among data read out of DSC3 successively and transfers the data to the main memory unit. Here, FDU4 can easily be constituted by providing comparing circuits.
COPYRIGHT: (C)1981,JPO&Japio
JP9406679A 1979-07-23 1979-07-23 File data processor Pending JPS5617457A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9406679A JPS5617457A (en) 1979-07-23 1979-07-23 File data processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9406679A JPS5617457A (en) 1979-07-23 1979-07-23 File data processor

Publications (1)

Publication Number Publication Date
JPS5617457A true JPS5617457A (en) 1981-02-19

Family

ID=14100137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9406679A Pending JPS5617457A (en) 1979-07-23 1979-07-23 File data processor

Country Status (1)

Country Link
JP (1) JPS5617457A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06187327A (en) * 1993-08-01 1994-07-08 Seiko Epson Corp Chinese character selecting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06187327A (en) * 1993-08-01 1994-07-08 Seiko Epson Corp Chinese character selecting device

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