Virtual Address eXtension
E701312
Virtual Address eXtension is a 32-bit CISC computer architecture developed by Digital Equipment Corporation, widely used in minicomputers from the late 1970s through the 1980s.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Virtual Address eXtension canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7894616 — 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: Virtual Address eXtension Context triple: [VAX, abbreviationOf, Virtual Address eXtension]
-
A.
VMX
VMX is a vector processing extension to the PowerPC architecture designed to accelerate multimedia, signal processing, and other parallelizable computations.
-
B.
Virtual Execution System
The Virtual Execution System is the runtime environment of the Common Language Infrastructure that loads, manages, and executes compiled code in a platform-agnostic way.
-
C.
VirtualBox Extension Pack
VirtualBox Extension Pack is an add-on for Oracle VM VirtualBox that provides advanced features such as USB 2.0/3.0 support, VirtualBox RDP, disk encryption, and PXE boot for Intel cards.
-
D.
XD bit (Execute Disable Bit)
XD bit (Execute Disable Bit) is a hardware-based security feature in modern processors that helps prevent certain types of malicious code execution by marking specific areas of memory as non-executable.
-
E.
V (vector extension)
V (vector extension) is the RISC-V standard for scalable vector processing, enabling efficient parallel computation on variable-length data vectors.
- 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: Virtual Address eXtension Target entity description: Virtual Address eXtension is a 32-bit CISC computer architecture developed by Digital Equipment Corporation, widely used in minicomputers from the late 1970s through the 1980s.
-
A.
VMX
VMX is a vector processing extension to the PowerPC architecture designed to accelerate multimedia, signal processing, and other parallelizable computations.
-
B.
Virtual Execution System
The Virtual Execution System is the runtime environment of the Common Language Infrastructure that loads, manages, and executes compiled code in a platform-agnostic way.
-
C.
VirtualBox Extension Pack
VirtualBox Extension Pack is an add-on for Oracle VM VirtualBox that provides advanced features such as USB 2.0/3.0 support, VirtualBox RDP, disk encryption, and PXE boot for Intel cards.
-
D.
XD bit (Execute Disable Bit)
XD bit (Execute Disable Bit) is a hardware-based security feature in modern processors that helps prevent certain types of malicious code execution by marking specific areas of memory as non-executable.
-
E.
V (vector extension)
V (vector extension) is the RISC-V standard for scalable vector processing, enabling efficient parallel computation on variable-length data vectors.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
CISC architecture
ⓘ
computer architecture ⓘ instruction set architecture ⓘ |
| abbreviation | VAX ⓘ |
| addressSpaceSize | 32-bit virtual address space ⓘ |
| architectureWidth | 32-bit ⓘ |
| commercialAvailability | late 1970s ⓘ |
| commonlyUsedWith |
Ultrix
NERFINISHED
ⓘ
VAX/VMS NERFINISHED ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| designedBy | Digital Equipment Corporation engineers ⓘ |
| designedFor |
multi-user systems
ⓘ
time-sharing systems ⓘ |
| developer | Digital Equipment Corporation NERFINISHED ⓘ |
| hasFeature | virtual address extension over 16-bit predecessors ⓘ |
| influenced |
VMS operating system design
ⓘ
later DEC architectures ⓘ |
| influencedBy | PDP-11 architecture NERFINISHED ⓘ |
| instructionSetType | complex instruction set computing ⓘ |
| introducedInDecade | 1970s ⓘ |
| marketSegment | minicomputer market ⓘ |
| notableImplementation |
MicroVAX
NERFINISHED
ⓘ
VAX-11 series NERFINISHED ⓘ VAXstation NERFINISHED ⓘ |
| peakUsePeriod | 1980s ⓘ |
| predecessor | PDP-11 architecture NERFINISHED ⓘ |
| registerCount | 16 general-purpose registers ⓘ |
| status | discontinued ⓘ |
| supports |
bit-field operations
ⓘ
byte-addressable memory ⓘ condition codes ⓘ floating-point instructions ⓘ hardware stack ⓘ integer arithmetic instructions ⓘ interrupt handling ⓘ orthogonal instruction set ⓘ paged memory management ⓘ privilege levels ⓘ procedure call instructions ⓘ rich addressing modes ⓘ string manipulation instructions ⓘ virtual memory ⓘ |
| targetApplication |
commercial data processing
ⓘ
scientific computing ⓘ |
| usedIn | minicomputers ⓘ |
| widespreadUse | 1980s minicomputers ⓘ |
| wordSize | 32-bit word ⓘ |
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: Virtual Address eXtension Description of subject: Virtual Address eXtension is a 32-bit CISC computer architecture developed by Digital Equipment Corporation, widely used in minicomputers from the late 1970s through the 1980s.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.