JPS57111646A - Floppy disc control system - Google Patents

Floppy disc control system

Info

Publication number
JPS57111646A
JPS57111646A JP18876380A JP18876380A JPS57111646A JP S57111646 A JPS57111646 A JP S57111646A JP 18876380 A JP18876380 A JP 18876380A JP 18876380 A JP18876380 A JP 18876380A JP S57111646 A JPS57111646 A JP S57111646A
Authority
JP
Japan
Prior art keywords
floppy disc
lsi3
adapter
position information
address
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
JP18876380A
Other languages
Japanese (ja)
Inventor
Yoshiharu Gondo
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 JP18876380A priority Critical patent/JPS57111646A/en
Publication of JPS57111646A publication Critical patent/JPS57111646A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)

Abstract

PURPOSE:To control plural units of floppy discs of time divided operation with a single controller by externally mounting a floppy disc adapter having a floppy disc head position information register. CONSTITUTION:When control for a floppy disc (FD) 2A is completed, the FD. LSi3 of a controller 1 stores the position information of a head of the FD.2A into the address TKA of a head position information register 7 in an FD adapter 6. Thence, when there is a read or write instruction to the FD.2B, the content of an address TKB is transferred to a track register 5. Thence, a command code and a seek address are transferred to the FD.LSi3. The FD.LSi3 seeks the FD. 2B in accordance with this, and after this, it executes read or write into or from the FD.2B. If necessary, at this time, the content of the status administrating part 8 in an FD adapter is utilized.
JP18876380A 1980-12-26 1980-12-26 Floppy disc control system Pending JPS57111646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18876380A JPS57111646A (en) 1980-12-26 1980-12-26 Floppy disc control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18876380A JPS57111646A (en) 1980-12-26 1980-12-26 Floppy disc control system

Publications (1)

Publication Number Publication Date
JPS57111646A true JPS57111646A (en) 1982-07-12

Family

ID=16229340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18876380A Pending JPS57111646A (en) 1980-12-26 1980-12-26 Floppy disc control system

Country Status (1)

Country Link
JP (1) JPS57111646A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185069A (en) * 1983-04-04 1984-10-20 Mitsubishi Electric Corp Recording medium read control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59185069A (en) * 1983-04-04 1984-10-20 Mitsubishi Electric Corp Recording medium read control system
JPH0514351B2 (en) * 1983-04-04 1993-02-24 Mitsubishi Electric Corp

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