ProDOS
E320816
ProDOS is a disk operating system developed by Apple for its Apple II series of computers, providing improved file management and hardware support over its predecessors.
All labels observed (6)
| Label | Occurrences |
|---|---|
| ProDOS canonical | 10 |
| Apple ProDOS | 3 |
| ProDOS 16 | 3 |
| ProDOS 8 | 2 |
| ProDOS 16 shell | 1 |
| ProDOS file system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3022725 — 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: ProDOS Context triple: [Apple Desktop Bus Mouse, usedWithOperatingSystem, ProDOS]
-
A.
CP/M-86
CP/M-86 is a 16-bit version of the CP/M operating system designed for Intel 8086/8088-based computers, serving as an early alternative to MS-DOS on machines like the IBM PC.
-
B.
CP/M
CP/M is an early microcomputer operating system widely used in the late 1970s and early 1980s, known for its influence on later systems like MS-DOS.
-
C.
MS-DOS Executive
MS-DOS Executive is the simple file management and program-launching shell that served as the primary user interface in early versions of Microsoft Windows, notably Windows 1.0.
-
D.
DR-DOS
DR-DOS is a DOS-compatible operating system developed by Digital Research as an alternative to MS-DOS, known for its advanced memory management and multitasking features for IBM PC-compatible computers.
-
E.
TOPS-10
TOPS-10 is a historic time-sharing operating system for DEC's PDP-10 mainframe computers, widely used in the 1960s and 1970s in academic and research environments.
- 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: ProDOS Target entity description: ProDOS is a disk operating system developed by Apple for its Apple II series of computers, providing improved file management and hardware support over its predecessors.
-
A.
CP/M-86
CP/M-86 is a 16-bit version of the CP/M operating system designed for Intel 8086/8088-based computers, serving as an early alternative to MS-DOS on machines like the IBM PC.
-
B.
CP/M
CP/M is an early microcomputer operating system widely used in the late 1970s and early 1980s, known for its influence on later systems like MS-DOS.
-
C.
MS-DOS Executive
MS-DOS Executive is the simple file management and program-launching shell that served as the primary user interface in early versions of Microsoft Windows, notably Windows 1.0.
-
D.
DR-DOS
DR-DOS is a DOS-compatible operating system developed by Digital Research as an alternative to MS-DOS, known for its advanced memory management and multitasking features for IBM PC-compatible computers.
-
E.
TOPS-10
TOPS-10 is a historic time-sharing operating system for DEC's PDP-10 mainframe computers, widely used in the 1960s and 1970s in academic and research environments.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Apple II operating system
ⓘ
disk operating system ⓘ |
| basedOn | SOS ⓘ |
| bootMethod | disk boot from block 0 loader ⓘ |
| developer |
Apple Computer, Inc.
ⓘ
linked to:
Apple Inc.
|
| distributedWith |
Apple IIc
ⓘ
Apple IIe ⓘ Apple IIgs ⓘ |
| fileSystemBlockSize | 512 bytes ⓘ |
| fileSystemType | hierarchical directory file system ⓘ |
| inspiredBy |
Apple III SOS
ⓘ
linked to:
Apple III
|
| kernelArchitecture | modular ⓘ |
| license | proprietary software ⓘ |
| maximumFilesPerDirectory | 51 files (original ProDOS) ⓘ |
| maximumVolumeSize | 32 MB ⓘ |
| notableFeature |
improved disk I/O performance over Apple DOS 3.3
ⓘ
more robust file system than Apple DOS 3.3 ⓘ standardized device driver interface ⓘ support for multiple storage device types ⓘ |
| operatingSystemFor |
Apple II series
ⓘ
linked to:
Apple II
Apple IIc ⓘ Apple IIe ⓘ
linked to:
Apple II
Apple IIgs ⓘ |
| platform |
8-bit Apple II
ⓘ
linked to:
Apple II
|
| predecessor |
Apple DOS 3.3
ⓘ
linked to:
Apple DOS
|
| primaryProgrammingLanguage | 6502 assembly language ⓘ |
| releaseYear | 1983 ⓘ |
| replaces | Apple DOS 3.3 as standard Apple II OS ⓘ |
| successor |
GS/OS
ⓘ
ProDOS 8 ⓘ
linked to:
ProDOS
|
| supportsFeature |
3.5-inch disk drives
ⓘ
RAM disks ⓘ block device abstraction ⓘ file attributes ⓘ hard disk drives ⓘ interrupt-driven clock ⓘ machine-language and BASIC programs ⓘ network file servers ⓘ random access files ⓘ subdirectories ⓘ time and date stamping of files ⓘ |
| supportsLanguage |
Applesoft BASIC
ⓘ
Integer BASIC (via compatibility) ⓘ
linked to:
BASIC
assembly language programs ⓘ |
| targetCPU |
65C02
ⓘ
MOS Technology 6502 ⓘ |
| variant |
ProDOS 16
ⓘ
linked to:
ProDOS
ProDOS 8 ⓘ
linked to:
ProDOS
|
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: ProDOS Description of subject: ProDOS is a disk operating system developed by Apple for its Apple II series of computers, providing improved file management and hardware support over its predecessors.
Referenced by (20)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: ProDOS
linked to: ProDOS
linked to: ProDOS
linked to: ProDOS