Apollo Guidance Computer
E254491
The Apollo Guidance Computer was a pioneering onboard digital computer developed by MIT that provided real-time navigation and control for NASA’s Apollo spacecraft during lunar missions.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Apollo Guidance Computer canonical | 14 |
| Apollo Guidance, Navigation, and Control system | 1 |
| Apollo spacecraft guidance, navigation, and control system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2293340 — 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: Apollo Guidance Computer Context triple: [Apollo Lunar Module, guidanceSystem, Apollo Guidance Computer]
-
A.
Honeywell 316 minicomputer
The Honeywell 316 minicomputer was a small, 16-bit general-purpose computer from the late 1960s widely used in early networking and control applications.
-
B.
COSMAC ELF computer
The COSMAC ELF computer is a simple, low-cost, build-it-yourself microcomputer from the late 1970s that became popular among hobbyists for learning and experimenting with early personal computing.
-
C.
Honeywell DDP-516 minicomputer
The Honeywell DDP-516 minicomputer was a rugged, 16-bit computer from the 1960s widely used in real-time and military applications, notably serving as the hardware platform for the original ARPANET Interface Message Processors.
-
D.
Apollo Computer
Apollo Computer was an American computer company best known for pioneering high-performance Domain workstation systems in the 1980s.
-
E.
S-100 bus computers
S-100 bus computers are early microcomputer systems built around the S-100 expansion bus standard, widely used in the late 1970s and early 1980s for hobbyist and professional computing.
- 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: Apollo Guidance Computer Target entity description: The Apollo Guidance Computer was a pioneering onboard digital computer developed by MIT that provided real-time navigation and control for NASA’s Apollo spacecraft during lunar missions.
-
A.
Honeywell 316 minicomputer
The Honeywell 316 minicomputer was a small, 16-bit general-purpose computer from the late 1960s widely used in early networking and control applications.
-
B.
COSMAC ELF computer
The COSMAC ELF computer is a simple, low-cost, build-it-yourself microcomputer from the late 1970s that became popular among hobbyists for learning and experimenting with early personal computing.
-
C.
Honeywell DDP-516 minicomputer
The Honeywell DDP-516 minicomputer was a rugged, 16-bit computer from the 1960s widely used in real-time and military applications, notably serving as the hardware platform for the original ARPANET Interface Message Processors.
-
D.
Apollo Computer
Apollo Computer was an American computer company best known for pioneering high-performance Domain workstation systems in the 1980s.
-
E.
S-100 bus computers
S-100 bus computers are early microcomputer systems built around the S-100 expansion bus standard, widely used in the late 1970s and early 1980s for hobbyist and professional computing.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
avionics system
ⓘ
digital computer ⓘ embedded system ⓘ onboard computer ⓘ |
| architecture | 16-bit word length ⓘ |
| clockFrequency | approximately 1.024 MHz ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| developer |
MIT Instrumentation Laboratory
ⓘ
linked to:
Draper Laboratory
Massachusetts Institute of Technology ⓘ |
| erasableMemorySize | 2 kilowords ⓘ |
| firstCrewedUse | Apollo 7 ⓘ |
| fixedMemorySize | 36 kilowords ⓘ |
| inputDevice |
DSKY interface
ⓘ
numeric keypad ⓘ |
| instructionSetSize | 34 instructions ⓘ |
| introduced | 1960s ⓘ |
| legacy |
influenced real-time operating system design
ⓘ
pioneered modern fly-by-wire avionics ⓘ |
| logicFamily | RTL integrated circuits ⓘ |
| mainMemoryType |
core rope memory
ⓘ
magnetic core memory ⓘ |
| manufacturer |
Raytheon
ⓘ
linked to:
Raytheon Company
|
| mass | about 32 kilograms ⓘ |
| notableCapability |
asynchronous executive
ⓘ
priority-based task scheduling ⓘ real-time multitasking ⓘ |
| notableEvent |
1201 program alarm during Apollo 11 landing
ⓘ
1202 program alarm during Apollo 11 landing ⓘ |
| notableMission |
Apollo 11
ⓘ
Apollo 13 ⓘ |
| notableSoftware | Apollo Guidance Software ⓘ |
| notableSoftwareEngineer | Margaret Hamilton ⓘ |
| numberOfICs | approximately 5000 integrated circuits ⓘ |
| operator | NASA ⓘ |
| outputDevice | DSKY display ⓘ |
| powerConsumption | approximately 70 watts ⓘ |
| program | Apollo program ⓘ |
| programmingLanguage |
AGC assembly language
ⓘ
linked to:
Assembly language
HAL/S precursor concepts ⓘ |
| reliabilityFeature | redundant logic design in some subsystems ⓘ |
| safetyFeature | program alarms for overload conditions ⓘ |
| status | retired ⓘ |
| technologyNode | integrated circuits ⓘ |
| usedFor |
control of Apollo spacecraft
ⓘ
guidance ⓘ lunar mission navigation ⓘ real-time navigation ⓘ |
| usedIn |
Apollo Command Module
ⓘ
linked to:
Apollo command and service module
Apollo Lunar Module ⓘ |
| wordLength | 15 data bits plus 1 parity 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: Apollo Guidance Computer Description of subject: The Apollo Guidance Computer was a pioneering onboard digital computer developed by MIT that provided real-time navigation and control for NASA’s Apollo spacecraft during lunar missions.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Apollo Guidance Computer
linked to: Apollo Guidance Computer