IBM PS/2 Model 50
E846649
The IBM PS/2 Model 50 is a mid-range personal computer from IBM's late-1980s PS/2 series, notable for introducing the Micro Channel Architecture (MCA) bus and 3.5-inch floppy drives to business desktops.
All labels observed (3)
| Label | Occurrences |
|---|---|
| IBM PS/2 Model 50 canonical | 6 |
| IBM PS/2 Model 50/60 line | 1 |
| PS/2 Model 50 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10156603 — 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 PS/2 Model 50 Context triple: [IBM Personal System/2 line, includesModel, IBM PS/2 Model 50]
-
A.
IBM PS/2 Model 30
The IBM PS/2 Model 30 is an entry-level personal computer from IBM’s late-1980s PS/2 family, notable for introducing the 3.5-inch floppy drive and VGA graphics to many home and small-business users.
-
B.
IBM 5170
The IBM 5170, marketed as the IBM Personal Computer AT, was a mid-1980s business-oriented desktop computer that introduced the 80286 processor and set many hardware standards for the PC industry.
-
C.
IBM 3083
The IBM 3083 is a mainframe computer model in IBM’s 308X family, introduced in the early 1980s as a more powerful and efficient successor to earlier System/370 processors.
-
D.
IBM 5151
The IBM 5151 is a monochrome CRT computer monitor introduced in the early 1980s for use with the original IBM Personal Computer.
-
E.
IBM 5153
The IBM 5153 is a color CRT monitor designed for use with early IBM PC systems, particularly the IBM PC/XT and PC/AT, supporting CGA graphics.
- 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 PS/2 Model 50 Target entity description: The IBM PS/2 Model 50 is a mid-range personal computer from IBM's late-1980s PS/2 series, notable for introducing the Micro Channel Architecture (MCA) bus and 3.5-inch floppy drives to business desktops.
-
A.
IBM PS/2 Model 30
The IBM PS/2 Model 30 is an entry-level personal computer from IBM’s late-1980s PS/2 family, notable for introducing the 3.5-inch floppy drive and VGA graphics to many home and small-business users.
-
B.
IBM 5170
The IBM 5170, marketed as the IBM Personal Computer AT, was a mid-1980s business-oriented desktop computer that introduced the 80286 processor and set many hardware standards for the PC industry.
-
C.
IBM 3083
The IBM 3083 is a mainframe computer model in IBM’s 308X family, introduced in the early 1980s as a more powerful and efficient successor to earlier System/370 processors.
-
D.
IBM 5151
The IBM 5151 is a monochrome CRT computer monitor introduced in the early 1980s for use with the original IBM Personal Computer.
-
E.
IBM 5153
The IBM 5153 is a color CRT monitor designed for use with early IBM PC systems, particularly the IBM PC/XT and PC/AT, supporting CGA graphics.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
IBM PS/2 computer
ⓘ
personal computer model ⓘ |
| branding | IBM PS/2 ⓘ |
| busArchitecture | Micro Channel Architecture ⓘ |
| category | IBM PC compatible (with MCA differences) ⓘ |
| contemporaryWith |
IBM PS/2 Model 30
ⓘ
IBM PS/2 Model 60 ⓘ IBM PS/2 Model 80 ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| cpuArchitecture | x86 ⓘ |
| cpuFamily | Intel 80286 ⓘ |
| designedFor |
IBM PS/2 peripherals
ⓘ
linked to:
IBM PS/2
|
| era | late 1980s ⓘ |
| expansionBus | MCA expansion slots ⓘ |
| floppyDriveSize | 3.5-inch ⓘ |
| floppyDriveType | high-density 3.5-inch floppy disk drive ⓘ |
| formFactor | desktop computer ⓘ |
| graphicsAdapter | VGA-compatible (in PS/2 line context) ⓘ |
| hasFeature |
3.5-inch floppy drive as standard
ⓘ
PS/2-style keyboard and mouse ports ⓘ business-oriented case design ⓘ proprietary Micro Channel bus ⓘ |
| intendedUse | business desktop computing ⓘ |
| introductionDate | 1987 ⓘ |
| keyboardInterface |
PS/2 keyboard connector
ⓘ
linked to:
PS/2
|
| manufacturer | IBM ⓘ |
| marketSegment | mid-range personal computer ⓘ |
| mouseInterface |
PS/2 mouse connector
ⓘ
linked to:
PS/2
|
| notableFor |
standard 3.5-inch floppy disk drives
ⓘ
use of Micro Channel Architecture bus ⓘ |
| operatingSystem |
IBM PC DOS
ⓘ
linked to:
MS-DOS
OS/2 (optional) ⓘ |
| predecessorInSeries |
IBM PC/AT
ⓘ
linked to:
IBM PC AT
|
| productLine | PS/2 ⓘ |
| series |
IBM Personal System/2
ⓘ
linked to:
IBM Personal System/2 line
|
| storageMedium |
3.5-inch floppy disk
ⓘ
magnetic hard disk ⓘ |
| storageType | hard disk drive ⓘ |
| successorTo |
IBM PC/AT class systems
ⓘ
linked to:
IBM PC AT
|
| supports |
IBM PS/2 display monitors
ⓘ
MCA expansion cards ⓘ |
| targetUsers |
business users
ⓘ
corporate customers ⓘ |
| usedIn |
corporate networks of the late 1980s
ⓘ
office environments ⓘ |
| wordSize | 16-bit ⓘ |
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 PS/2 Model 50 Description of subject: The IBM PS/2 Model 50 is a mid-range personal computer from IBM's late-1980s PS/2 series, notable for introducing the Micro Channel Architecture (MCA) bus and 3.5-inch floppy drives to business desktops.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: IBM PS/2 Model 50
linked to: IBM PS/2 Model 50