exFAT
E40785
exFAT is a Microsoft-developed file system optimized for flash drives and SD cards, designed to handle large files and volumes with broad cross-platform compatibility.
All labels observed (4)
| Label | Occurrences |
|---|---|
| exFAT canonical | 10 |
| Microsoft published exFAT specification in 2019 | 1 |
| exFAT (OEM-dependent) | 1 |
| exFAT extended BPB | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T314893 — 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: exFAT Context triple: [ChromeOS, supportsFileSystem, exFAT]
-
A.
FAT16
FAT16 is an older 16-bit File Allocation Table file system widely used on early DOS and Windows systems, known for its simplicity and limitations in maximum partition and file sizes.
-
B.
XFS
XFS is a high-performance 64-bit journaling file system originally developed by SGI, widely used on Linux for handling large files and parallel I/O workloads.
-
C.
VFAT
VFAT is a Linux-compatible variant of the FAT file system that adds support for long filenames and improved interoperability with Windows systems.
-
D.
ext4
ext4 is a widely used, journaling fourth-generation extended file system for Linux, designed for improved performance, reliability, and support for large volumes and files.
-
E.
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.
- 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: exFAT Target entity description: exFAT is a Microsoft-developed file system optimized for flash drives and SD cards, designed to handle large files and volumes with broad cross-platform compatibility.
-
A.
FAT16
FAT16 is an older 16-bit File Allocation Table file system widely used on early DOS and Windows systems, known for its simplicity and limitations in maximum partition and file sizes.
-
B.
XFS
XFS is a high-performance 64-bit journaling file system originally developed by SGI, widely used on Linux for handling large files and parallel I/O workloads.
-
C.
VFAT
VFAT is a Linux-compatible variant of the FAT file system that adds support for long filenames and improved interoperability with Windows systems.
-
D.
ext4
ext4 is a widely used, journaling fourth-generation extended file system for Linux, designed for improved performance, reliability, and support for large volumes and files.
-
E.
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.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
computer file system
ⓘ
file system ⓘ |
| advantageOver | FAT32 for large files ⓘ |
| comparedTo | NTFS ⓘ |
| compatibleWith | FAT file system family ⓘ |
| designedFor |
consumer electronics
ⓘ
embedded devices ⓘ removable storage ⓘ |
| developer | Microsoft ⓘ |
| directoryStructure | B+ tree-like directory layout ⓘ |
| disadvantageComparedTo | NTFS in security features ⓘ |
| fileSystemType |
lightweight
ⓘ
non-journaled by design ⓘ |
| intendedAs | replacement for FAT32 on flash media ⓘ |
| introducedBy |
Windows Embedded family
ⓘ
surface form:
Microsoft Windows CE 6.0
|
| introducedYear | 2006 ⓘ |
| licensing |
originally proprietary
ⓘ
patent-encumbered by Microsoft ⓘ |
| licensingChange |
exFAT
self-linksurface differs
ⓘ
surface form:
Microsoft published exFAT specification in 2019
Microsoft supported exFAT in Linux kernel in 2019 ⓘ |
| operatingSystemSupport |
Android
ⓘ
Linux ⓘ Windows ⓘ iOS ⓘ macOS ⓘ |
| optimizedFor |
SD cards
ⓘ
USB flash drives ⓘ flash drives ⓘ memory cards ⓘ |
| predecessor | FAT32 ⓘ |
| standardizedBy | SD Association ⓘ |
| supportsFeature |
Unicode file names
ⓘ
access control lists via implementations ⓘ allocation bitmap ⓘ cluster sizes up to 32 MB ⓘ file size larger than 4 GB ⓘ file size up to 16 EB (theoretical) ⓘ free space bitmap ⓘ journaling optional via implementations ⓘ large files ⓘ large volumes ⓘ time stamps ⓘ up to 2,796,202 files per directory (implementation-dependent) ⓘ volume size up to 128 PB (theoretical) ⓘ |
| typicalClusterSizeRange | 4 KB to 32 MB ⓘ |
| useCase |
external hard drives
ⓘ
high-capacity SDXC cards ⓘ interoperable storage between Windows and macOS ⓘ solid-state drives ⓘ |
| usedBy |
SDUC specification
ⓘ
SDXC specification ⓘ |
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: exFAT Description of subject: exFAT is a Microsoft-developed file system optimized for flash drives and SD cards, designed to handle large files and volumes with broad cross-platform compatibility.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Microsoft published exFAT specification in 2019
subject surface form:
Sleuth Kit
subject surface form:
FAT table
this entity surface form:
exFAT extended BPB
this entity surface form:
exFAT (OEM-dependent)