IBM XT
E699603
The IBM XT is an early 1980s IBM personal computer model that expanded on the original IBM PC with a built-in hard drive and greater expandability, becoming a widely used business desktop system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IBM XT canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7935809 — 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 XT Context triple: [IBM 5151, compatibleWith, IBM XT]
-
A.
IBM System/390
IBM System/390 is IBM’s family of 1990s mainframe computers that introduced 31-bit ESA/390 architecture and advanced enterprise computing features, forming the basis for later System z systems.
-
B.
IBM System z
IBM System z is IBM’s family of mainframe computers known for high reliability, scalability, and support for enterprise workloads, including running Linux at large scale.
-
C.
IBM RS/6000 systems
IBM RS/6000 systems are a family of RISC-based workstations and servers from IBM, widely used in enterprise and technical computing environments for running UNIX (AIX) and high-performance applications.
-
D.
IBM 3081
The IBM 3081 was a high-performance mainframe computer introduced in the early 1980s as part of IBM’s next generation of System/370-compatible processors, known for significantly advancing processing speed and system throughput in enterprise computing.
-
E.
IBM Personal System/2 line
The IBM Personal System/2 line was a series of IBM personal computers introduced in the late 1980s that popularized the PS/2 hardware architecture and VGA graphics standard in the PC market.
- 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 XT Target entity description: The IBM XT is an early 1980s IBM personal computer model that expanded on the original IBM PC with a built-in hard drive and greater expandability, becoming a widely used business desktop system.
-
A.
IBM System/390
IBM System/390 is IBM’s family of 1990s mainframe computers that introduced 31-bit ESA/390 architecture and advanced enterprise computing features, forming the basis for later System z systems.
-
B.
IBM System z
IBM System z is IBM’s family of mainframe computers known for high reliability, scalability, and support for enterprise workloads, including running Linux at large scale.
-
C.
IBM RS/6000 systems
IBM RS/6000 systems are a family of RISC-based workstations and servers from IBM, widely used in enterprise and technical computing environments for running UNIX (AIX) and high-performance applications.
-
D.
IBM 3081
The IBM 3081 was a high-performance mainframe computer introduced in the early 1980s as part of IBM’s next generation of System/370-compatible processors, known for significantly advancing processing speed and system throughput in enterprise computing.
-
E.
IBM Personal System/2 line
The IBM Personal System/2 line was a series of IBM personal computers introduced in the late 1980s that popularized the PS/2 hardware architecture and VGA graphics standard in the PC market.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
IBM PC compatible
ⓘ
personal computer ⓘ |
| architecture | x86 NERFINISHED ⓘ |
| busArchitecture | ISA NERFINISHED ⓘ |
| busWidth | 8-bit ISA ⓘ |
| caseType | horizontal desktop case ⓘ |
| category | 1980s personal computers ⓘ |
| compatibleWith |
IBM PC peripherals
NERFINISHED
ⓘ
IBM PC software ⓘ |
| cpu | Intel 8088 NERFINISHED ⓘ |
| cpuBitWidth | 16-bit internal, 8-bit external bus ⓘ |
| cpuClockSpeed | 4.77 MHz ⓘ |
| defaultRAM | 128 KB ⓘ |
| depth | approx. 43 cm ⓘ |
| discontinuedYear | 1987 ⓘ |
| displayInterface |
CGA
NERFINISHED
ⓘ
MDA ⓘ |
| expansionSlots | 8 ISA slots ⓘ |
| floppyController | 8-bit floppy disk controller card ⓘ |
| floppyDrives | 5.25-inch floppy disk drive(s) ⓘ |
| formFactor | desktop ⓘ |
| hardDiskInterface | ST-506 compatible interface ⓘ |
| height | approx. 14 cm ⓘ |
| influenced | subsequent IBM PC compatibles ⓘ |
| introductionDate | 1983-03-08 ⓘ |
| introductionYear | 1983 ⓘ |
| keyboard | 83-key IBM PC/XT keyboard ⓘ |
| manufacturer | IBM NERFINISHED ⓘ |
| marketImpact | widely used business desktop system ⓘ |
| maximumRAM | 640 KB ⓘ |
| modelNumber | IBM 5160 NERFINISHED ⓘ |
| notableFeature |
greater expandability than original IBM PC
ⓘ
included built-in hard disk as standard ⓘ |
| officialName | IBM Personal Computer XT NERFINISHED ⓘ |
| operatedOn | 110–120 V AC or 220–240 V AC (depending on region) ⓘ |
| operatingSystem |
MS-DOS compatible
ⓘ
PC DOS NERFINISHED ⓘ |
| powerSupply | 130 W (early models) ⓘ |
| predecessor | IBM PC 5150 NERFINISHED ⓘ |
| romBasic | IBM Cassette BASIC in ROM ⓘ |
| shortName | PC XT NERFINISHED ⓘ |
| storage |
10 MB hard disk drive
ⓘ
20 MB hard disk drive (later models) ⓘ |
| successor | IBM AT NERFINISHED ⓘ |
| targetMarket | business users ⓘ |
| weight | approximately 14–16 kg (system unit) ⓘ |
| width | approx. 48 cm ⓘ |
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 XT Description of subject: The IBM XT is an early 1980s IBM personal computer model that expanded on the original IBM PC with a built-in hard drive and greater expandability, becoming a widely used business desktop system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.