JPS5450244A - Data write control system of floppy disc device - Google Patents

Data write control system of floppy disc device

Info

Publication number
JPS5450244A
JPS5450244A JP11550477A JP11550477A JPS5450244A JP S5450244 A JPS5450244 A JP S5450244A JP 11550477 A JP11550477 A JP 11550477A JP 11550477 A JP11550477 A JP 11550477A JP S5450244 A JPS5450244 A JP S5450244A
Authority
JP
Japan
Prior art keywords
data
area
memory
sector
floppy disc
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
JP11550477A
Other languages
Japanese (ja)
Inventor
Hiroshi Iguchi
Hiroshi Tsuchiya
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 JP11550477A priority Critical patent/JPS5450244A/en
Publication of JPS5450244A publication Critical patent/JPS5450244A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To enhance a data write efficiency by providing a buffer memory for storing data, which is written in each sector of the floppy disc device, beforehand and writing data of this memory into a fixed area of each sector in a high speed. CONSTITUTION:Buffer memories 20a and 20b are provided which store beforehand data, which is to be written in each sector of floppy disc device 18, and each of memories 20a and 20b is provided with command data area CA, data area DA and synchronous area SA. Then, the command signal from CPU is decoded by command signal decoder 22, and address circuit 24 is set to assign the head address to memory 20a, thereby storing data in data area DA through data generator 26 and OR circuit 28. Then, while storing write data in memory 20a, stored data is immediately written in a prescribed area of each sector of device 18 through transfer control circuit 30 by memory 20b.
JP11550477A 1977-09-28 1977-09-28 Data write control system of floppy disc device Pending JPS5450244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11550477A JPS5450244A (en) 1977-09-28 1977-09-28 Data write control system of floppy disc device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11550477A JPS5450244A (en) 1977-09-28 1977-09-28 Data write control system of floppy disc device

Publications (1)

Publication Number Publication Date
JPS5450244A true JPS5450244A (en) 1979-04-20

Family

ID=14664147

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11550477A Pending JPS5450244A (en) 1977-09-28 1977-09-28 Data write control system of floppy disc device

Country Status (1)

Country Link
JP (1) JPS5450244A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1047061A1 (en) * 1999-04-23 2000-10-25 Sony Corporation Disc controller, disc control system, and disc controlling method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1047061A1 (en) * 1999-04-23 2000-10-25 Sony Corporation Disc controller, disc control system, and disc controlling method
US6546475B1 (en) 1999-04-23 2003-04-08 Sony Corporation Disc controller, disc control system, and disc controlling method

Similar Documents

Publication Publication Date Title
JPS5725069A (en) Vector data processing equipment
ES486724A1 (en) Main storage configuration control system
JPS6436327A (en) Optical printer controller
JPS5250132A (en) Information processing control unit
JPS5525860A (en) Memory system
JPS5450244A (en) Data write control system of floppy disc device
JPS5361924A (en) Recognizer device
JPS57182247A (en) Buffer memory device
JPS5240111A (en) Head control system
JPS5578365A (en) Memory control unit
JPS53107240A (en) Control system of register memory
JPS53135232A (en) Main memory control system
JPS6486395A (en) Storage device
JPS5365629A (en) Memory system
JPS56159886A (en) Buffer memory device
JPS5644185A (en) Magnetic bubble memory device
JPS53148344A (en) Data storage system to buffer memory unit
JPS53106110A (en) Magnetic memory controller
JPS55115770A (en) Tone signal production system
JPS5533282A (en) Buffer control system
JPS5430742A (en) Memory control system
JPS56159885A (en) Storage device
JPS53126823A (en) Writing system for refresh memory
JPS57207942A (en) Unpacking circuit
JPS5235533A (en) Buffer memory system