Micro Channel Architecture
E844006
Micro Channel Architecture is a proprietary 16- and 32-bit computer bus standard introduced by IBM in the late 1980s to replace the ISA bus and provide improved performance, configuration, and expansion capabilities in personal computers.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Micro Channel Architecture canonical | 11 |
| Micro Channel Architecture not backward compatible with ISA | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10156592 — 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: Micro Channel Architecture Context triple: [IBM Personal System/2 line, busStandard, Micro Channel Architecture]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Intel 430FX chipset
The Intel 430FX chipset is an early Pentium-era core logic chipset from Intel that provided support for features like PCI, EDO/FPM DRAM, and basic system I/O on mid-1990s desktop motherboards.
-
E.
Socket 7
Socket 7 is a CPU socket standard from the mid-1990s that supported a range of Intel and compatible processors, notable for enabling broad cross-vendor motherboard compatibility.
- 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: Micro Channel Architecture Target entity description: Micro Channel Architecture is a proprietary 16- and 32-bit computer bus standard introduced by IBM in the late 1980s to replace the ISA bus and provide improved performance, configuration, and expansion capabilities in personal computers.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
Intel 430FX chipset
The Intel 430FX chipset is an early Pentium-era core logic chipset from Intel that provided support for features like PCI, EDO/FPM DRAM, and basic system I/O on mid-1990s desktop motherboards.
-
E.
Socket 7
Socket 7 is a CPU socket standard from the mid-1990s that supported a range of Intel and compatible processors, notable for enabling broad cross-vendor motherboard compatibility.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
IBM technology
ⓘ
computer bus standard ⓘ |
| abbreviation | MCA ⓘ |
| addressingMode |
memory-mapped I/O
ⓘ
reduced use of legacy I/O ports ⓘ |
| bitWidth |
16-bit
ⓘ
32-bit ⓘ |
| compatibility | not backward compatible with ISA cards ⓘ |
| competingStandard |
EISA
ⓘ
Extended Industry Standard Architecture ⓘ
linked to:
Industry Standard Architecture
|
| configurationMethod |
POS registers
ⓘ
Programmable Option Select ⓘ |
| controversy | rejected by many clone PC manufacturers due to licensing costs ⓘ |
| dataTransferMode | burst transfers ⓘ |
| designGoal |
reduce hardware jumpers and DIP switches
ⓘ
simplify system expansion ⓘ support higher throughput peripherals ⓘ |
| developer | IBM ⓘ |
| influenced | later Plug and Play concepts ⓘ |
| influencedBy | limitations of ISA bus ⓘ |
| introducedInYear | 1987 ⓘ |
| keyFeature |
32-bit data path
ⓘ
arbitration for multiple bus masters ⓘ automatic configuration ⓘ bus mastering support ⓘ higher bus bandwidth than ISA ⓘ improved interrupt handling ⓘ improved performance over ISA ⓘ software-configurable resources ⓘ support for DMA improvements ⓘ |
| licensingModel |
proprietary
ⓘ
royalty-bearing ⓘ |
| market |
PC servers
ⓘ
personal computers ⓘ |
| notableLimitation | lack of widespread third-party adoption ⓘ |
| predecessor |
ISA bus
ⓘ
Industry Standard Architecture ⓘ |
| purpose | replace ISA bus ⓘ |
| signalType | synchronous bus ⓘ |
| slotType | dedicated MCA expansion slot ⓘ |
| status | largely obsolete ⓘ |
| supports |
16-bit MCA adapter cards
ⓘ
32-bit MCA adapter cards ⓘ |
| usedIn |
IBM PS/2 Model 50
ⓘ
IBM PS/2 Model 60 ⓘ IBM PS/2 Model 80 ⓘ IBM PS/2 computers ⓘ
linked to:
IBM PS/2
some IBM RS/6000 systems ⓘ |
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: Micro Channel Architecture Description of subject: Micro Channel Architecture is a proprietary 16- and 32-bit computer bus standard introduced by IBM in the late 1980s to replace the ISA bus and provide improved performance, configuration, and expansion capabilities in personal computers.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Micro Channel Architecture