Apple 5.25" floppy disk drive
E200296
The Apple 5.25" floppy disk drive is a vintage external disk drive used primarily with early Apple II-series computers for reading and writing 5.25-inch floppy disks.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Apple 5.25" floppy disk drive canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1774471 — 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 5.25" floppy disk drive Context triple: [Apple IIe Card, supportsPeripheral, Apple 5.25" floppy disk drive]
-
A.
original Macintosh 128K
The original Macintosh 128K was Apple’s first mass-market personal computer with a graphical user interface and mouse, introduced in 1984 and known for its compact all-in-one design.
-
B.
Apple Lisa
Apple Lisa was an early 1980s Apple personal computer notable for pioneering a graphical user interface and mouse-driven desktop environment.
-
C.
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.
-
D.
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.
-
E.
Apple I
The Apple I was Apple Computer's first commercially sold personal computer, a pioneering single-board machine introduced in 1976 that helped launch the modern home computing era.
- 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 5.25" floppy disk drive Target entity description: The Apple 5.25" floppy disk drive is a vintage external disk drive used primarily with early Apple II-series computers for reading and writing 5.25-inch floppy disks.
-
A.
original Macintosh 128K
The original Macintosh 128K was Apple’s first mass-market personal computer with a graphical user interface and mouse, introduced in 1984 and known for its compact all-in-one design.
-
B.
Apple Lisa
Apple Lisa was an early 1980s Apple personal computer notable for pioneering a graphical user interface and mouse-driven desktop environment.
-
C.
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.
-
D.
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.
-
E.
Apple I
The Apple I was Apple Computer's first commercially sold personal computer, a pioneering single-board machine introduced in 1976 that helped launch the modern home computing era.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
computer peripheral
ⓘ
floppy disk drive ⓘ |
| category |
Apple II hardware accessory
ⓘ
vintage computer hardware ⓘ |
| compatibleWith | Apple II expansion cards for disk control ⓘ |
| connectionLocation | rear of Apple II-series computers ⓘ |
| dataAccessMode | random access ⓘ |
| dataEncoding | GCR (Group Coded Recording) ⓘ |
| designedFor |
educational computing environments
ⓘ
home computing ⓘ |
| diskDiameter | 5.25 inches ⓘ |
| diskSidesSupported | single-sided ⓘ |
| driveMechanism | soft-sectored ⓘ |
| formFactor | external drive ⓘ |
| historicalSignificance | key storage device for early Apple II personal computers ⓘ |
| interface |
Apple UniDisk 5.25
ⓘ
surface form:
Disk II interface (Apple II family)
|
| manufacturer |
Apple Inc.
ⓘ
surface form:
Apple Computer, Inc.
|
| marketedAs | Disk II drive (earlier mechanism) related product ⓘ |
| maxDrivesPerController | 2 ⓘ |
| mediaOrientation | single-sided, single-density (original formats) ⓘ |
| mediaType | 5.25-inch floppy disk ⓘ |
| notableFeature |
designed for low-cost mass storage for Apple II
ⓘ
proprietary Apple disk format ⓘ |
| operatingSystemSupport |
Apple DOS
ⓘ
ProDOS ⓘ early Apple CP/M systems (via add-on card) ⓘ |
| physicalMedium | magnetic storage ⓘ |
| powerSource | host computer power supply ⓘ |
| primaryUse |
reading 5.25-inch floppy disks
ⓘ
writing 5.25-inch floppy disks ⓘ |
| readWriteHeads | single read/write head ⓘ |
| rotationSpeed | 300 RPM ⓘ |
| sectorCountPerTrack | 16 ⓘ |
| sectorSize | 256 bytes ⓘ |
| status | discontinued ⓘ |
| storageType | removable media ⓘ |
| successor | Apple 3.5" floppy disk drive ⓘ |
| supportsDaisyChaining | yes ⓘ |
| typicalCapacityPerDisk | 140 KB ⓘ |
| typicalUsePeriod | late 1970s to late 1980s ⓘ |
| usedFor |
booting Apple II systems
ⓘ
loading software ⓘ saving user data ⓘ |
| usedWith |
Apple II
ⓘ
Apple II ⓘ
surface form:
Apple II Plus
Apple II ⓘ
surface form:
Apple IIc
Apple II ⓘ
surface form:
Apple IIe
Apple II ⓘ
surface form:
Apple IIgs
|
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 5.25" floppy disk drive Description of subject: The Apple 5.25" floppy disk drive is a vintage external disk drive used primarily with early Apple II-series computers for reading and writing 5.25-inch floppy disks.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Apple IIe Card