PDP-1
E229928
The PDP-1 was an early 1960s minicomputer famous for its interactive computing capabilities and for running some of the first video games, including "Spacewar!".
All labels observed (3)
| Label | Occurrences |
|---|---|
| PDP-1 canonical | 4 |
| TX-0 computer | 2 |
| Programmed Data Processor-1 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2038699 — 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: PDP-1 Context triple: [Digital Equipment Corporation, notableProduct, PDP-1]
-
A.
PDP-7
The PDP-7 was a 1960s DEC minicomputer whose relatively low cost and flexible design made it popular in research labs and notable as the machine on which the first version of Unix was developed.
-
B.
MITS Altair 8800
The MITS Altair 8800 is a pioneering 1975 microcomputer kit based on the Intel 8080 processor that helped launch the personal computer revolution and inspired early hobbyist and software ecosystems.
-
C.
PDP-11
The PDP-11 is a series of 16-bit minicomputers introduced by Digital Equipment Corporation in the 1970s that became highly influential in computer architecture and operating system development.
-
D.
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.
-
E.
EDVAC
EDVAC was one of the earliest electronic stored-program computers, pioneering the use of binary arithmetic and influencing the development of modern computer architecture.
- 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: PDP-1 Target entity description: The PDP-1 was an early 1960s minicomputer famous for its interactive computing capabilities and for running some of the first video games, including "Spacewar!".
-
A.
PDP-7
The PDP-7 was a 1960s DEC minicomputer whose relatively low cost and flexible design made it popular in research labs and notable as the machine on which the first version of Unix was developed.
-
B.
MITS Altair 8800
The MITS Altair 8800 is a pioneering 1975 microcomputer kit based on the Intel 8080 processor that helped launch the personal computer revolution and inspired early hobbyist and software ecosystems.
-
C.
PDP-11
The PDP-11 is a series of 16-bit minicomputers introduced by Digital Equipment Corporation in the 1970s that became highly influential in computer architecture and operating system development.
-
D.
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.
-
E.
EDVAC
EDVAC was one of the earliest electronic stored-program computers, pioneering the use of binary arithmetic and influencing the development of modern computer architecture.
- F. None of above. chosen
Statements (54)
| Predicate | Object |
|---|---|
| instanceOf |
computer system
ⓘ
minicomputer ⓘ |
| abbreviation | PDP-1 self-link ⓘ |
| architecture | 18-bit word length ⓘ |
| clockSpeed | about 200 kHz ⓘ |
| commercialAvailabilityYear | 1960 ⓘ |
| cpuType | serial processor ⓘ |
| demonstrated |
early computer music
ⓘ
real-time text editing ⓘ |
| designedFor |
interactive computing
ⓘ
laboratory data acquisition ⓘ time-sharing research ⓘ |
| displayType | Type 30 precision CRT display ⓘ |
| era | early 1960s ⓘ |
| family | PDP series ⓘ |
| firstCustomer | Bolt Beranek and Newman ⓘ |
| influenced |
interactive computing paradigms
ⓘ
later PDP series computers ⓘ time-sharing system designs ⓘ |
| inputDevice |
console switches
ⓘ
paper tape reader ⓘ |
| instructionSetType | single-address instructions ⓘ |
| introductionYear | 1959 ⓘ |
| locationOfSurvivingUnit |
Computer History Museum
ⓘ
surface form:
Computer History Museum, Mountain View, California
|
| mainMemoryCapacity |
4096 words
ⓘ
up to 65536 words ⓘ |
| manufacturer | Digital Equipment Corporation ⓘ |
| marketPosition | relatively low-cost scientific computer for its time ⓘ |
| notableFor |
being one of the first computers with a video display for interactive use
ⓘ
influencing hacker culture at MIT ⓘ interactive computing capabilities ⓘ running Spacewar! ⓘ supporting some of the first video games ⓘ |
| numberBuilt | about 50 units ⓘ |
| operatingSystem | no standard operating system ⓘ |
| outputDevice |
CRT display
ⓘ
paper tape punch ⓘ teleprinter ⓘ |
| powerRequirement | about 3.5 kW ⓘ |
| primaryMemoryType | magnetic core memory ⓘ |
| ranGame | Spacewar! ⓘ |
| restoredBy | Computer History Museum volunteers ⓘ |
| shortName |
PDP-1
self-linksurface differs
ⓘ
surface form:
Programmed Data Processor-1
|
| storageDevice | DECtape ⓘ |
| typicalSoftware |
assemblers
ⓘ
debugging tools ⓘ monitor programs ⓘ |
| usedAt |
Bell Telephone Laboratories
ⓘ
surface form:
Bell Labs
Bolt Beranek and Newman ⓘ CMU ⓘ
surface form:
Carnegie Mellon University
Massachusetts Institute of Technology ⓘ Stanford University ⓘ |
| weight | about 1600 pounds ⓘ |
| wordLength | 18 bits ⓘ |
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: PDP-1 Description of subject: The PDP-1 was an early 1960s minicomputer famous for its interactive computing capabilities and for running some of the first video games, including "Spacewar!".
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
TX-0 computer
this entity surface form:
TX-0 computer
this entity surface form:
Programmed Data Processor-1