Macintosh File System
E200268
Macintosh File System is the original hierarchical disk file system used by early Apple Macintosh computers, designed for simplicity and tight integration with the classic Mac OS.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Macintosh File System canonical | 7 |
| Apple Macintosh File System | 1 |
| Hierarchical File System | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1773821 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Macintosh File System Context triple: [System 1.0, supportsFileSystem, Macintosh File System]
-
A.
HFS Plus
HFS Plus is a proprietary journaling file system developed by Apple for use in macOS and earlier Macintosh operating systems, succeeding the original HFS to support larger files and volumes.
-
B.
APFS
APFS (Apple File System) is Apple's modern, high-performance file system designed for macOS and other Apple platforms, featuring strong encryption, space sharing, snapshots, and improved reliability over its predecessors.
-
C.
ISO 9660
ISO 9660 is an international standard file system format primarily used for optical disc media such as CD-ROMs to ensure cross-platform data compatibility.
-
D.
ReiserFS
ReiserFS is a journaling file system for Linux known for its efficient handling of small files and advanced tree-based storage structures.
-
E.
System 5
System 5 is an early version of Apple’s classic Macintosh operating system used on machines like the Macintosh Plus in the late 1980s.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Macintosh File System Target entity description: Macintosh File System is the original hierarchical disk file system used by early Apple Macintosh computers, designed for simplicity and tight integration with the classic Mac OS.
-
A.
HFS Plus
HFS Plus is a proprietary journaling file system developed by Apple for use in macOS and earlier Macintosh operating systems, succeeding the original HFS to support larger files and volumes.
-
B.
APFS
APFS (Apple File System) is Apple's modern, high-performance file system designed for macOS and other Apple platforms, featuring strong encryption, space sharing, snapshots, and improved reliability over its predecessors.
-
C.
ISO 9660
ISO 9660 is an international standard file system format primarily used for optical disc media such as CD-ROMs to ensure cross-platform data compatibility.
-
D.
ReiserFS
ReiserFS is a journaling file system for Linux known for its efficient handling of small files and advanced tree-based storage structures.
-
E.
System 5
System 5 is an early version of Apple’s classic Macintosh operating system used on machines like the Macintosh Plus in the late 1980s.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Apple file system
ⓘ
file system ⓘ hierarchical file system ⓘ |
| casePreservation | case-preserving ⓘ |
| caseSensitivity | case-insensitive ⓘ |
| characterEncoding | MacRoman ⓘ |
| dataStorage | data fork ⓘ |
| defaultVolumeFormat |
400 KB floppy disk
ⓘ
800 KB floppy disk ⓘ |
| designedFor |
simplicity
ⓘ
tight integration with classic Mac OS ⓘ |
| designedForHardware |
68k Macintosh
ⓘ
surface form:
Motorola 68000-based Macintosh
|
| developer |
Apple Inc.
ⓘ
surface form:
Apple Computer, Inc.
|
| directorySeparator | : ⓘ |
| discontinued | yes ⓘ |
| discontinuedInFavorOf | Hierarchical File System ⓘ |
| fileIdentification | type and creator codes instead of extensions ⓘ |
| fileSystemAbbreviation | MFS ⓘ |
| integratedWith |
Finder
ⓘ
Macintosh Toolbox ⓘ |
| introducedInYear | 1984 ⓘ |
| limitations |
inefficient use of space on larger disks
ⓘ
limited maximum number of files per volume ⓘ no support for large hard disks ⓘ |
| maximumFileNameLength | 31 characters ⓘ |
| metadataStorage | resource fork ⓘ |
| operatingSystem | Classic Mac OS ⓘ |
| platform |
68k Macintosh
ⓘ
surface form:
Motorola 680x0 Macintosh
|
| primaryUse | floppy disk volumes ⓘ |
| replacedBy | Hierarchical File System ⓘ |
| successor | Hierarchical File System ⓘ |
| supports |
creator codes
ⓘ
data forks ⓘ file attributes ⓘ file metadata ⓘ file type codes ⓘ fixed-size allocation blocks ⓘ hierarchical directories ⓘ resource forks ⓘ volume labels ⓘ |
| supportsBooting | yes ⓘ |
| usedBy |
System 1
ⓘ
System 2 ⓘ early System 3 releases ⓘ |
| usedIn | early Apple Macintosh computers ⓘ |
| volumeStructure |
fixed-size directory records
ⓘ
single root directory ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Macintosh File System Description of subject: Macintosh File System is the original hierarchical disk file system used by early Apple Macintosh computers, designed for simplicity and tight integration with the classic Mac OS.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Hierarchical File System
this entity surface form:
Apple Macintosh File System