Apple UniDisk 5.25
E200297
The Apple UniDisk 5.25 is an external 5.25-inch floppy disk drive designed by Apple for use with Apple II series computers and compatible systems.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Apple UniDisk 5.25 canonical | 1 |
| Disk II interface (Apple II family) | 1 |
| UniDisk 5.25 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1774472 — 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: Apple UniDisk 5.25 Context triple: [Apple IIe Card, supportsPeripheral, Apple UniDisk 5.25]
-
A.
Macintosh SE
The Macintosh SE is a compact all-in-one personal computer introduced by Apple in 1987, notable for adding an internal expansion slot and improved performance to the classic Macintosh line.
-
B.
Macintosh SE/30
The Macintosh SE/30 is a compact all-in-one Macintosh computer introduced by Apple in 1989, notable for its powerful 68030 processor, expandability, and popularity as a high-performance classic Mac.
-
C.
Macintosh XL
The Macintosh XL was a rebranded and slightly modified version of Apple’s Lisa 2 computer, marketed as an early Macintosh-compatible business workstation.
-
D.
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.
-
E.
Macintosh 512K
Macintosh 512K is an early Apple personal computer released in 1985 that expanded the original Macintosh’s memory and storage capacity, making it more practical for business and productivity use.
- 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: Apple UniDisk 5.25 Target entity description: The Apple UniDisk 5.25 is an external 5.25-inch floppy disk drive designed by Apple for use with Apple II series computers and compatible systems.
-
A.
Macintosh SE
The Macintosh SE is a compact all-in-one personal computer introduced by Apple in 1987, notable for adding an internal expansion slot and improved performance to the classic Macintosh line.
-
B.
Macintosh SE/30
The Macintosh SE/30 is a compact all-in-one Macintosh computer introduced by Apple in 1989, notable for its powerful 68030 processor, expandability, and popularity as a high-performance classic Mac.
-
C.
Macintosh XL
The Macintosh XL was a rebranded and slightly modified version of Apple’s Lisa 2 computer, marketed as an early Macintosh-compatible business workstation.
-
D.
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.
-
E.
Macintosh 512K
Macintosh 512K is an early Apple personal computer released in 1985 that expanded the original Macintosh’s memory and storage capacity, making it more practical for business and productivity use.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
computer peripheral
ⓘ
floppy disk drive ⓘ |
| brand |
Apple Inc.
ⓘ
surface form:
Apple
|
| category |
Apple II peripherals
ⓘ
Apple hardware ⓘ floppy disk drives ⓘ |
| compatibleWith |
Apple II
ⓘ
surface form:
Apple IIc
Apple IIc Plus ⓘ Apple II ⓘ
surface form:
Apple IIe
Apple II ⓘ
surface form:
Apple IIgs
|
| connectsVia |
Apple II disk port
ⓘ
DB-19 connector ⓘ |
| dataEncoding | Apple GCR 5-and-3 encoding ⓘ |
| designedFor |
Apple II
ⓘ
surface form:
Apple II series
|
| developer |
Apple Inc.
ⓘ
surface form:
Apple Computer, Inc.
|
| formFactor | external drive ⓘ |
| hasColor | beige ⓘ |
| hasFeature |
daisy-chain pass-through port
ⓘ
disk-in-use indicator light ⓘ external power from host computer ⓘ front-loading disk slot ⓘ plastic enclosure ⓘ |
| interfaceType | Apple II 5.25-inch disk interface ⓘ |
| manufacturer |
Apple Inc.
ⓘ
surface form:
Apple Computer, Inc.
|
| marketedAs |
Apple UniDisk 5.25
self-linksurface differs
ⓘ
surface form:
UniDisk 5.25
|
| mediaCapacity | 140 KB per disk side ⓘ |
| mediaSides | single-sided ⓘ |
| mediaType | 5.25-inch floppy disk ⓘ |
| mounting | desktop external unit ⓘ |
| operatingSystem |
Apple DOS
ⓘ
ProDOS ⓘ |
| platform |
Apple II
ⓘ
surface form:
Apple II family
|
| predecessor | Disk II ⓘ |
| recordingMethod | GCR ⓘ |
| rotationSpeed | 300 RPM ⓘ |
| successor |
Sony 3.5-inch floppy drive
ⓘ
surface form:
Apple 3.5 Drive
|
| supports |
Apple DOS
ⓘ
surface form:
Apple DOS 3.3 disks
CP/M disks on Apple II with CP/M card ⓘ ProDOS disks ⓘ |
| supportsDiskFormat | 35-track Apple II 5.25-inch format ⓘ |
| targetMarket |
education market
ⓘ
home computer users ⓘ small business users ⓘ |
| usedFor |
reading 5.25-inch floppy disks
ⓘ
writing 5.25-inch floppy disks ⓘ |
| usedOn |
Apple II
ⓘ
surface form:
16-bit Apple IIgs
8-bit Apple II computers ⓘ |
| usedWith | Apple II software on floppy disks ⓘ |
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: Apple UniDisk 5.25 Description of subject: The Apple UniDisk 5.25 is an external 5.25-inch floppy disk drive designed by Apple for use with Apple II series computers and compatible systems.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Apple IIe Card
this entity surface form:
Disk II interface (Apple II family)
this entity surface form:
UniDisk 5.25