DOS/4GW
E944926
DOS/4GW is a DOS extender that enabled 32-bit protected-mode applications, particularly games, to run under DOS by providing access to extended memory and advanced processor features.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T11751652 — 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: DOS/4GW Context triple: [DPMI, usedBy, DOS/4GW]
-
A.
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.
-
B.
GEMDOS
GEMDOS is the disk operating system component of Atari's TOS, providing file and disk management functions similar to MS-DOS on Atari ST computers.
-
C.
DOS
DOS is the commonly used acronym for the United States Department of State, the federal executive department responsible for U.S. foreign policy and international relations.
-
D.
Altair DOS
Altair DOS is an early disk-based operating system developed for the MITS Altair 8800 microcomputer, providing basic file management and program loading capabilities.
-
E.
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.
- 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: DOS/4GW Target entity description: DOS/4GW is a DOS extender that enabled 32-bit protected-mode applications, particularly games, to run under DOS by providing access to extended memory and advanced processor features.
-
A.
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.
-
B.
GEMDOS
GEMDOS is the disk operating system component of Atari's TOS, providing file and disk management functions similar to MS-DOS on Atari ST computers.
-
C.
DOS
DOS is the commonly used acronym for the United States Department of State, the federal executive department responsible for U.S. foreign policy and international relations.
-
D.
Altair DOS
Altair DOS is an early disk-based operating system developed for the MITS Altair 8800 microcomputer, providing basic file management and program loading capabilities.
-
E.
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.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
DOS extender
ⓘ
software ⓘ |
| architecture | x86 ⓘ |
| basedOn |
DOS/4G
ⓘ
linked to:
DOS/4GW
|
| category |
game development tool
ⓘ
memory management software ⓘ |
| compatibleWith |
Intel 80386 or later processors
ⓘ
linked to:
Intel 80386
|
| distributedWith |
Watcom C/C++
ⓘ
linked to:
Open Watcom
Watcom compiler ⓘ
linked to:
Open Watcom
|
| enables |
32-bit applications under DOS
ⓘ
access to extended memory ⓘ use of advanced processor features ⓘ |
| era | 1990s PC gaming ⓘ |
| fileExtension | .exe ⓘ |
| handles |
memory allocation beyond 640 KB
ⓘ
switching between real mode and protected mode ⓘ |
| implements | DPMI ⓘ |
| memoryModel | flat 32-bit address space ⓘ |
| notableFor | widespread use in DOS games of the 1990s ⓘ |
| operatingSystem |
DOS
ⓘ
linked to:
MS-DOS
|
| provides |
interface between real mode and protected mode
ⓘ
protected-mode runtime for DOS programs ⓘ |
| requires | 386 or better CPU ⓘ |
| runsOn | IBM PC compatible computers ⓘ |
| supportsMode | 32-bit protected mode ⓘ |
| targetEnvironment | real-mode DOS ⓘ |
| typicalUseCase |
commercial DOS games
ⓘ
high-performance DOS applications ⓘ |
| usedFor |
running 32-bit protected-mode applications
ⓘ
running games under DOS ⓘ |
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: DOS/4GW Description of subject: DOS/4GW is a DOS extender that enabled 32-bit protected-mode applications, particularly games, to run under DOS by providing access to extended memory and advanced processor features.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.