OS/8
E810933
OS/8 is a lightweight disk-based operating system developed by Digital Equipment Corporation for its PDP-8 minicomputers, providing a simple file system and program development tools.
All labels observed (13)
How this entity was disambiguated
This entity first appeared as the object of triple T9611724 — 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: OS/8 Context triple: [PDP-8, osSupport, OS/8]
-
A.
OS-9
OS-9 is a real-time, multitasking operating system originally developed by Microware for embedded and industrial computing platforms.
-
B.
CP/M-86
CP/M-86 is a 16-bit version of the CP/M operating system designed for Intel 8086/8088-based computers, serving as an early alternative to MS-DOS on machines like the IBM PC.
-
C.
CP/M
CP/M is an early microcomputer operating system widely used in the late 1970s and early 1980s, known for its influence on later systems like MS-DOS.
-
D.
Altair DOS
Altair DOS is an early disk-based operating system developed for the MITS Altair 8800 microcomputer, providing basic file management and program loading capabilities.
-
E.
TOPS-20
TOPS-20 is a mainframe time-sharing operating system from the 1970s and 1980s, known for its advanced interactive features and use on DEC’s PDP-10 systems.
- 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: OS/8 Target entity description: OS/8 is a lightweight disk-based operating system developed by Digital Equipment Corporation for its PDP-8 minicomputers, providing a simple file system and program development tools.
-
A.
OS-9
OS-9 is a real-time, multitasking operating system originally developed by Microware for embedded and industrial computing platforms.
-
B.
CP/M-86
CP/M-86 is a 16-bit version of the CP/M operating system designed for Intel 8086/8088-based computers, serving as an early alternative to MS-DOS on machines like the IBM PC.
-
C.
CP/M
CP/M is an early microcomputer operating system widely used in the late 1970s and early 1980s, known for its influence on later systems like MS-DOS.
-
D.
Altair DOS
Altair DOS is an early disk-based operating system developed for the MITS Altair 8800 microcomputer, providing basic file management and program loading capabilities.
-
E.
TOPS-20
TOPS-20 is a mainframe time-sharing operating system from the 1970s and 1980s, known for its advanced interactive features and use on DEC’s PDP-10 systems.
- F. None of above. chosen
Statements (62)
| Predicate | Object |
|---|---|
| instanceOf | operating system ⓘ |
| alsoKnownAs |
DEC OS/8
ⓘ
linked to:
OS/8
PDP-8 OS/8 ⓘ
linked to:
OS/8
|
| architecture | 12-bit ⓘ |
| companyHeadquartersOfDeveloper | Maynard, Massachusetts ⓘ |
| component |
OS/8 BASIC interpreter
ⓘ
linked to:
OS/8
OS/8 BUILD system utility ⓘ
linked to:
OS/8
OS/8 CCL (Concise Command Language) ⓘ
linked to:
OS/8
OS/8 Command Decoder ⓘ
linked to:
OS/8
OS/8 EDIT text editor ⓘ OS/8 FOCAL interpreter ⓘ
linked to:
OS/8
OS/8 FORTRAN compiler ⓘ OS/8 Keyboard Monitor ⓘ
linked to:
OS/8
OS/8 Monitor ⓘ
linked to:
OS/8
OS/8 PIP file utility ⓘ PAL-8 assembler ⓘ
linked to:
PAL-8 assembly language
|
| designedFor |
minicomputer
ⓘ
resource-constrained systems ⓘ |
| developer | Digital Equipment Corporation ⓘ |
| fileSystemFeature |
contiguous file allocation
ⓘ
flat directory structure ⓘ six-character filenames ⓘ three-character file extensions ⓘ |
| forHardwarePlatform |
PDP-8
ⓘ
PDP-8/A ⓘ
linked to:
PDP-8
PDP-8/E ⓘ
linked to:
PDP-8
PDP-8/F ⓘ
linked to:
PDP-8
PDP-8/M ⓘ
linked to:
PDP-8
|
| kernelType | monolithic kernel ⓘ |
| license | proprietary software ⓘ |
| memoryRequirement | at least 8K words of core memory ⓘ |
| notableFor |
simplicity
ⓘ
small size ⓘ widespread use in education ⓘ |
| operatingSystemFamily | PDP-8 operating systems ⓘ |
| predecessor |
OS/12
ⓘ
OS/8 Disk Monitor (8K DMS) ⓘ
linked to:
OS/8
|
| releaseDate | late 1960s ⓘ |
| releaseDecade | 1960s ⓘ |
| storageMedium |
DECtape
ⓘ
RK05 disk drive ⓘ RL01 disk drive ⓘ RL02 disk drive ⓘ |
| successor |
COS-300
ⓘ
COS-310 ⓘ COS-350 ⓘ |
| supports |
batch processing
ⓘ
interactive use ⓘ program development tools ⓘ simple file system ⓘ |
| supportsLanguage |
BASIC
ⓘ
FOCAL ⓘ FORTRAN ⓘ
linked to:
Fortran
PAL-8 assembly language ⓘ |
| supportsMultitasking | no ⓘ |
| supportsOverlayMechanism | yes ⓘ |
| supportsTimeSharing | no ⓘ |
| usedIn |
educational institutions
ⓘ
industrial control systems ⓘ laboratory control systems ⓘ |
| userInterface | command-line interface ⓘ |
| wordSize | 12-bit word ⓘ |
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: OS/8 Description of subject: OS/8 is a lightweight disk-based operating system developed by Digital Equipment Corporation for its PDP-8 minicomputers, providing a simple file system and program development tools.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: OS/8
linked to: OS/8
linked to: OS/8
linked to: OS/8
linked to: OS/8