IBM PC XT
E36661
The IBM PC XT is an early 1980s personal computer from IBM that expanded on the original IBM PC with a built-in hard drive and more expansion capabilities, becoming a widely used business desktop system.
All labels observed (6)
| Label | Occurrences |
|---|---|
| IBM PC XT canonical | 9 |
| IBM PC XT (in some models) | 1 |
| IBM PC XT 5160 | 1 |
| IBM PC/XT | 1 |
| IBM Personal Computer XT | 1 |
| PC XT | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T272517 — 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: IBM PC XT Context triple: [IBM PC, inspired, IBM PC XT]
-
A.
IBM PC
The IBM PC is the original 1981 personal computer model from IBM that became a de facto industry standard and helped popularize home and business computing worldwide.
-
B.
Intel 8088
The Intel 8088 is an 8-bit external, 16-bit internal microprocessor from Intel’s x86 family, best known as the CPU used in the original IBM PC that helped establish the PC-compatible standard.
-
C.
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.
-
D.
Intel 8086
The Intel 8086 is a 16-bit microprocessor introduced in 1978 that formed the basis of the x86 architecture used in most modern personal computers.
-
E.
MS-DOS
MS-DOS is a command-line operating system that became the foundational software platform for early IBM-compatible personal computers in the 1980s and early 1990s.
- 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: IBM PC XT Target entity description: The IBM PC XT is an early 1980s personal computer from IBM that expanded on the original IBM PC with a built-in hard drive and more expansion capabilities, becoming a widely used business desktop system.
-
A.
IBM PC
The IBM PC is the original 1981 personal computer model from IBM that became a de facto industry standard and helped popularize home and business computing worldwide.
-
B.
Intel 8088
The Intel 8088 is an 8-bit external, 16-bit internal microprocessor from Intel’s x86 family, best known as the CPU used in the original IBM PC that helped establish the PC-compatible standard.
-
C.
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.
-
D.
Intel 8086
The Intel 8086 is a 16-bit microprocessor introduced in 1978 that formed the basis of the x86 architecture used in most modern personal computers.
-
E.
MS-DOS
MS-DOS is a command-line operating system that became the foundational software platform for early IBM-compatible personal computers in the 1980s and early 1990s.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
IBM PC compatible
ⓘ
desktop computer ⓘ personal computer ⓘ |
| alsoKnownAs |
IBM 5160
ⓘ
IBM PC XT ⓘ
surface form:
PC XT
|
| announcementDate | 1983-03-08 ⓘ |
| bios | IBM PC XT BIOS ⓘ |
| caseType | horizontal desktop case ⓘ |
| compatibleWith |
IBM PC peripherals
ⓘ
IBM PC software ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| cpu | Intel 8088 ⓘ |
| cpuArchitecture | x86 ⓘ |
| cpuClockSpeed | 4.77 MHz ⓘ |
| cpuWordSize | 16-bit ⓘ |
| developer | IBM ⓘ |
| expansionBus | ISA ⓘ |
| expansionBusWidth | 8-bit ISA ⓘ |
| expansionSlots | 8 ISA slots ⓘ |
| family |
IBM PC compatible
ⓘ
surface form:
IBM Personal Computer family
|
| floppyDrive | 5.25-inch floppy disk drive ⓘ |
| formFactor | desktop system unit ⓘ |
| graphicsAdapter |
CGA
ⓘ
MDA ⓘ |
| initialRam | 128 KB ⓘ |
| introduced | 1983 ⓘ |
| keyboard | 83-key keyboard ⓘ |
| keyboardInterface | XT keyboard interface ⓘ |
| manufacturer | IBM ⓘ |
| marketSegment | business desktop computer ⓘ |
| maximumRam | 640 KB ⓘ |
| modelNumber | 5160 ⓘ |
| notableFeature |
built-in hard disk drive
ⓘ
increased expansion capabilities ⓘ widespread use in offices ⓘ |
| operatingSystem |
MS-DOS
ⓘ
MS-DOS ⓘ
surface form:
PC DOS
|
| osLoader | ROM BIOS ⓘ |
| powerSupply | 130 W power supply ⓘ |
| predecessor |
IBM PC
ⓘ
surface form:
IBM PC 5150
IBM PC ⓘ
surface form:
IBM Personal Computer
|
| primaryUse |
business computing
ⓘ
office applications ⓘ |
| releaseDecade | 1980s ⓘ |
| storage |
10 MB hard disk drive
ⓘ
20 MB hard disk drive ⓘ |
| successor |
IBM PC AT
ⓘ
surface form:
IBM PC/AT
IBM PC AT ⓘ
surface form:
IBM Personal Computer AT
|
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: IBM PC XT Description of subject: The IBM PC XT is an early 1980s personal computer from IBM that expanded on the original IBM PC with a built-in hard drive and more expansion capabilities, becoming a widely used business desktop system.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
IBM PC XT 5160
this entity surface form:
IBM PC XT (in some models)
this entity surface form:
PC XT
this entity surface form:
IBM PC/XT
this entity surface form:
IBM Personal Computer XT