IBM PC XT BIOS
E191795
IBM PC XT BIOS is the low-level firmware that initializes and controls the hardware of the IBM PC XT, providing essential system services for its operating systems and software.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IBM PC XT BIOS canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1696151 — 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 BIOS Context triple: [IBM PC XT, bios, IBM PC XT BIOS]
-
A.
IBM PC XT
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.
-
B.
IBM PC AT
The IBM PC AT is a second-generation IBM personal computer introduced in 1984 that featured the Intel 80286 processor and set many hardware and expansion standards for business PCs.
-
C.
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.
-
D.
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.
-
E.
IBM PC compatible
IBM PC compatible refers to a class of personal computers that are hardware- and software-compatible with the original IBM Personal Computer standard, enabling them to run the same operating systems and applications.
- 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 BIOS Target entity description: IBM PC XT BIOS is the low-level firmware that initializes and controls the hardware of the IBM PC XT, providing essential system services for its operating systems and software.
-
A.
IBM PC XT
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.
-
B.
IBM PC AT
The IBM PC AT is a second-generation IBM personal computer introduced in 1984 that featured the Intel 80286 processor and set many hardware and expansion standards for business PCs.
-
C.
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.
-
D.
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.
-
E.
IBM PC compatible
IBM PC compatible refers to a class of personal computers that are hardware- and software-compatible with the original IBM Personal Computer standard, enabling them to run the same operating systems and applications.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
IBM PC compatible BIOS
ⓘ
computer firmware ⓘ system BIOS ⓘ |
| architecture | x86 ⓘ |
| bootProcess | loads boot sector from disk ⓘ |
| checksHardware |
ROM checksums
ⓘ
disk controllers ⓘ keyboard presence ⓘ system RAM ⓘ video adapter ⓘ |
| compatibleWith |
MS-DOS
ⓘ
MS-DOS ⓘ
surface form:
PC DOS
|
| contains |
bootstrap code
ⓘ
character font data ⓘ hardware configuration routines ⓘ |
| cpuSupport | Intel 8088 ⓘ |
| designedFor |
floppy disk boot
ⓘ
hard disk boot ⓘ |
| developedBy | IBM ⓘ |
| exposes | interrupt vector table ⓘ |
| influenced | later PC compatible BIOS implementations ⓘ |
| nonVolatile | true ⓘ |
| performs | POST ⓘ |
| platform | IBM PC XT ⓘ |
| primaryFunction |
basic I/O services
ⓘ
bootstrap loader ⓘ hardware initialization ⓘ power-on self-test ⓘ |
| providesInterface |
INT 10h video services
ⓘ
INT 13h disk services ⓘ INT 14h serial services ⓘ INT 16h keyboard services ⓘ INT 17h printer services ⓘ software interrupt API ⓘ |
| providesService |
disk services
ⓘ
display services ⓘ interrupt handling ⓘ keyboard services ⓘ memory size detection ⓘ printer services ⓘ serial port services ⓘ timer services ⓘ |
| releaseEra | early 1980s ⓘ |
| romSize | 64 KB ⓘ |
| storageLocation | ROM ⓘ |
| successorTo |
ROM BIOS
ⓘ
surface form:
IBM PC 5150 BIOS
|
| supportsBus | ISA ⓘ |
| usedIn |
IBM 5160
ⓘ
IBM PC XT ⓘ
surface form:
IBM Personal Computer XT
|
| 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 PC XT BIOS Description of subject: IBM PC XT BIOS is the low-level firmware that initializes and controls the hardware of the IBM PC XT, providing essential system services for its operating systems and software.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.