International Organization for Standardization (ISO)
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ISO 7665:1983
Scope
Specifies requirements for file structure and labelling of flexible disk cartridges for information interchange between users of different information processing systems, i.e. recorded labels to identify files, file sections and volumes of lexible disk cartridges; basic blocks characteristics containing the record constituting the file; and the file structures. It determines three nested levels of interchange: BASIC INTERCHANGE, EXTENDED INTERCHANGE LEVEL 1, EXTENDED INTERCHANGE LEVEL 2.
ISO 7665:1983 history
1983ISO 7665:1983 Information processing; File structure and labelling of flexible disk cartridges for information interchange