JPS5563456A - Assignment retrieval system for magnetic tape - Google Patents
Assignment retrieval system for magnetic tapeInfo
- 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
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
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) |
-
1978
- 1978-11-08 JP JP13770978A patent/JPS5563456A/en active Pending
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