JPS5563456A - Assignment retrieval system for magnetic tape - Google Patents

Assignment retrieval system for magnetic tape

Info

Publication number
JPS5563456A
JPS5563456A JP13770978A JP13770978A JPS5563456A JP S5563456 A JPS5563456 A JP S5563456A JP 13770978 A JP13770978 A JP 13770978A JP 13770978 A JP13770978 A JP 13770978A JP S5563456 A JPS5563456 A JP S5563456A
Authority
JP
Japan
Prior art keywords
assignment
data amount
unit
magnetic tape
register
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
JP13770978A
Other languages
Japanese (ja)
Inventor
Masao Morimoto
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 JP13770978A priority Critical patent/JPS5563456A/en
Publication of JPS5563456A publication Critical patent/JPS5563456A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

PURPOSE: To make even the wear of magnetic heads, by assigning the unit in which the data amount of readout/write-in is minimized, in the assignment system retrieving and assigning the magnetic tape not in use.
CONSTITUTION: When the assignment request for magnetic tape is incoming, the assignment means 11 shifts the unit number of the unit not in use and the data amount from the memory means 31 via the retrieval circuit 11b to the register 41a of the minimum detection circuit 41. The unit having minimum data amount in the memory means and the data amount itself are obtained at the register 41b. The assignment control circuit 11a informs the unit obtained to the original request of assignment. When the data is read out/written in actually, the column of data amount corresponded in the memory means 31 is rewritten via the register 51a. The wear of magnetic heads can be kept even since the data amount of readout/write-in is assigned to the unit minimized.
COPYRIGHT: (C)1980,JPO&Japio
JP13770978A 1978-11-08 1978-11-08 Assignment retrieval system for magnetic tape Pending JPS5563456A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13770978A JPS5563456A (en) 1978-11-08 1978-11-08 Assignment retrieval system for magnetic tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13770978A JPS5563456A (en) 1978-11-08 1978-11-08 Assignment retrieval system for magnetic tape

Publications (1)

Publication Number Publication Date
JPS5563456A true JPS5563456A (en) 1980-05-13

Family

ID=15204980

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13770978A Pending JPS5563456A (en) 1978-11-08 1978-11-08 Assignment retrieval system for magnetic tape

Country Status (1)

Country Link
JP (1) JPS5563456A (en)

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