IMSAI 8080
E653490
The IMSAI 8080 is an early microcomputer from the mid-1970s, widely recognized as one of the first commercially successful personal computers and a prominent system in the S-100 bus ecosystem.
All labels observed (3)
| Label | Occurrences |
|---|---|
| IMSAI 8080 canonical | 3 |
| IMSAI | 2 |
| IMSAI Series 8080 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7279671 — 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: IMSAI 8080 Context triple: [Intel 8080, usedIn, IMSAI 8080]
-
A.
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.
-
B.
RCA 1802 microprocessor
The RCA 1802 microprocessor is an early CMOS-based 8-bit CPU notable for its low power consumption, radiation hardness, and use in spacecraft and embedded systems in the 1970s and 1980s.
-
C.
Zilog Z80
The Zilog Z80 is an 8-bit microprocessor introduced in the mid-1970s that became widely used in home computers, embedded systems, and calculators due to its enhanced instruction set and compatibility with the Intel 8080.
-
D.
Intel 8085
The Intel 8085 is an 8-bit microprocessor introduced by Intel in the mid-1970s, widely used in early personal computers, embedded systems, and educational platforms.
-
E.
Motorola 6800 microprocessor
The Motorola 6800 microprocessor is an 8-bit CPU introduced in the mid-1970s that became influential in early microcomputer and embedded system designs.
- 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: IMSAI 8080 Target entity description: The IMSAI 8080 is an early microcomputer from the mid-1970s, widely recognized as one of the first commercially successful personal computers and a prominent system in the S-100 bus ecosystem.
-
A.
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.
-
B.
RCA 1802 microprocessor
The RCA 1802 microprocessor is an early CMOS-based 8-bit CPU notable for its low power consumption, radiation hardness, and use in spacecraft and embedded systems in the 1970s and 1980s.
-
C.
Zilog Z80
The Zilog Z80 is an 8-bit microprocessor introduced in the mid-1970s that became widely used in home computers, embedded systems, and calculators due to its enhanced instruction set and compatibility with the Intel 8080.
-
D.
Intel 8085
The Intel 8085 is an 8-bit microprocessor introduced by Intel in the mid-1970s, widely used in early personal computers, embedded systems, and educational platforms.
-
E.
Motorola 6800 microprocessor
The Motorola 6800 microprocessor is an 8-bit CPU introduced in the mid-1970s that became influential in early microcomputer and embedded system designs.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
S-100 bus computer
ⓘ
microcomputer ⓘ |
| alsoKnownAs |
IMSAI Series 8080
ⓘ
linked to:
IMSAI 8080
|
| basedOn |
Intel 8080 microprocessor
ⓘ
linked to:
Intel 8080
|
| busArchitecture | S-100 bus ⓘ |
| category |
early personal computers
ⓘ
home computer history ⓘ |
| commercialStatus | commercially successful ⓘ |
| compatibleWith |
Altair 8800
ⓘ
linked to:
MITS Altair 8800
|
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| cpu | Intel 8080 ⓘ |
| cpuBitWidth | 8-bit ⓘ |
| era | 1970s microcomputers ⓘ |
| expansionSlots | S-100 slots ⓘ |
| featuredAs | hacker David Lightman’s computer in WarGames ⓘ |
| featuredIn | film WarGames ⓘ |
| formFactor | desktop computer ⓘ |
| frontPanelColor |
black
ⓘ
blue ⓘ red ⓘ |
| hasChassisType | 19-inch rack-mountable case ⓘ |
| hasFrontPanel | status LEDs ⓘ |
| hasFrontPanel | toggle switches ⓘ |
| influenced | later S-100 bus compatible systems ⓘ |
| inspiredBy |
Altair 8800
ⓘ
linked to:
MITS Altair 8800
|
| introduced | 1975 ⓘ |
| manufacturer | IMSAI Manufacturing Corporation ⓘ |
| marketedAs |
fully assembled system
ⓘ
kit computer ⓘ |
| memoryType | dynamic RAM ⓘ |
| notableFor |
being one of the first commercially successful personal computers
ⓘ
front panel switch and LED interface ⓘ prominent role in the S-100 bus ecosystem ⓘ |
| powerSupplyType | linear power supply ⓘ |
| powerSwitchLocation | front panel ⓘ |
| primaryInput | front panel switches ⓘ |
| primaryOutput | front panel LEDs ⓘ |
| storageOptions |
cassette tape
ⓘ
floppy disk ⓘ |
| supportsOperatingSystem |
CP/M
ⓘ
IMSAI DOS ⓘ MITS 8K BASIC ⓘ |
| typicalRAMConfiguration |
16 KB
ⓘ
4 KB ⓘ 8 KB ⓘ |
| usedFor |
education
ⓘ
hobbyist computing ⓘ software development ⓘ |
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: IMSAI 8080 Description of subject: The IMSAI 8080 is an early microcomputer from the mid-1970s, widely recognized as one of the first commercially successful personal computers and a prominent system in the S-100 bus ecosystem.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: IMSAI 8080
linked to: IMSAI 8080