BCPL

E51010

procedural programming language programming language systems programming language

BCPL (Basic Combined Programming Language) is an early, typeless systems programming language developed in the 1960s that significantly influenced the design of the C programming language.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (4)

Label	Occurrences
BCPL canonical	10
BCPL programming language	1
Basic Combined Programming Language	1
CPL (programming language)	1

How this entity was disambiguated

This entity first appeared as the object of triple T400543 — 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: BCPL
Context triple: [C, influencedBy, BCPL]

A. Algol 68
Algol 68 is a high-level, structured programming language from the ALGOL family, notable for its orthogonal design and influence on many later languages.
B. ALGOL 60
ALGOL 60 is an early high-level programming language that pioneered block structure and lexical scoping, profoundly influencing the design of many later languages.
C. ABC programming language
ABC is an early high-level, interactive programming language developed at CWI that emphasized readability and simplicity, and later influenced the design of Python.
D. ALGOL W
ALGOL W is an early procedural programming language developed in the 1960s as a successor to ALGOL 60, notable for introducing features that strongly influenced the design of Pascal.
E. 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.
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: BCPL
Target entity description: BCPL (Basic Combined Programming Language) is an early, typeless systems programming language developed in the 1960s that significantly influenced the design of the C programming language.

A. Algol 68
Algol 68 is a high-level, structured programming language from the ALGOL family, notable for its orthogonal design and influence on many later languages.
B. ALGOL 60
ALGOL 60 is an early high-level programming language that pioneered block structure and lexical scoping, profoundly influencing the design of many later languages.
C. ABC programming language
ABC is an early high-level, interactive programming language developed at CWI that emphasized readability and simplicity, and later influenced the design of Python.
D. ALGOL W
ALGOL W is an early procedural programming language developed in the 1960s as a successor to ALGOL 60, notable for introducing features that strongly influenced the design of Pascal.
E. 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.
F. None of above. chosen

Statements (45)

Predicate	Object
instanceOf	procedural programming language ⓘ programming language ⓘ systems programming language ⓘ
ancestorOf	B programming language ⓘ C ⓘ surface form: C programming language
blockDelimiter	BEGIN ... END (historically) / $( ... $) in some syntaxes ⓘ
category	historical programming language ⓘ system implementation language ⓘ
dataModel	single machine word data type ⓘ
decadeIntroduced	1960s ⓘ
designedInCountry	United Kingdom ⓘ
designer	Martin Richards ⓘ
executionModel	compiled language ⓘ
fullName	BCPL self-linksurface differs ⓘ surface form: Basic Combined Programming Language
historicalSignificance	major precursor to the C language ⓘ one of the earliest high-level systems programming languages ⓘ
implementationStrategy	portable compiler with intermediate language ⓘ
influenced	B ⓘ C ⓘ CPL subsets and derivatives ⓘ
influencedArea	block structure in C ⓘ control structures in C ⓘ design of C data types and operators ⓘ
influencedBy	CPL ⓘ
influencedLanguageFamily	C family of languages ⓘ
notableConcept	global vector for runtime system data ⓘ
notableImplementation	Tripos operating system implementation language ⓘ early compiler-writing language ⓘ
originLanguageFamily	CPL family ⓘ
paradigm	procedural ⓘ
primaryUse	compiler implementation ⓘ operating system implementation ⓘ systems programming ⓘ
standardizationStatus	non-ISO-standard language ⓘ
successor	B programming language ⓘ C ⓘ surface form: C programming language
supportsFeature	low-level hardware access ⓘ manual memory management ⓘ recursive procedures ⓘ structured programming constructs ⓘ
typingDiscipline	typeless ⓘ untyped ⓘ
usedIn	early operating systems research ⓘ university teaching and research in systems programming ⓘ
yearIntroduced	1966 ⓘ

How these facts were elicited

Referenced by (13)

Full triples — surface form annotated when it differs from this entity's canonical label.

C → influencedBy → BCPL ⓘ

Algol 68 → influencedBy → BCPL ⓘ

this entity surface form: CPL (programming language)

ALGOL 60 → influenced → BCPL ⓘ

BCPL → fullName → BCPL self-linksurface differs ⓘ

this entity surface form: Basic Combined Programming Language

Bravo text editor → programmingLanguage → BCPL ⓘ

B → influencedBy → BCPL ⓘ

B → basedOn → BCPL ⓘ

B programming language → influencedBy → BCPL ⓘ

B programming language → predecessor → BCPL ⓘ

ALGOL → influenced → BCPL ⓘ

Martin Richards → knownFor → BCPL ⓘ

this entity surface form: BCPL programming language

Martin Richards → developed → BCPL ⓘ

Xerox Alto → programmingLanguageUsed → BCPL ⓘ

All labels observed (4)

How this entity was disambiguated Show

Statements (45)

How these facts were elicited Show

Referenced by (13)

How this entity was disambiguated

How these facts were elicited