Details: File format summary

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Summary
Name	Hierarchical File System
Version
Other names
Identifiers	PUID: fmt/1105
Family
Classification	Aggregate
Disclosure
Description	Hierarchical File System (HFS) is a file system developed by Apple primarily for Mac OS. Within HFS a storage volume is divided into logical blocks of 512 bytes. The Hierarchical File System groups these logical blocks into allocation blocks, which can contain one or more logical blocks, depending on the total size of the volume.
Orientation
Byte order
Related file formats	None.
Technical Environment
Released
Supported until
Format Risk
Developed by	Apple Computer, Inc.
Supported by	Apple Computer, Inc.
Source	Artefactual Systems Inc / Artefactual Systems Inc
Source date	07 Nov 2017
Source description	This entry and identification for Hierarchical File System was a collaborative effort involving the Open Preservation Foundation, Artefactual Systems, New York Public Libraries, The University of California, Los Angeles and The National Archives.
Last updated	07 Nov 2017
Note