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In computer programming, a subroutine is a sequence of program instructions that performs a specific task, packaged as a unit. This unit can then be used in programs wherever that particular task should be performed. In the compiling method called threaded code, the executable program is basically a sequence of subroutine calls.

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rdf:type	Thing
rdfs:label	Subroutine (en)
rdfs:comment	In computer programming, a subroutine is a sequence of program instructions that performs a specific task, packaged as a unit. This unit can then be used in programs wherever that particular task should be performed. In the compiling method called threaded code, the executable program is basically a sequence of subroutine calls. (en)
rdfs:seeAlso	Pure function
sameAs	Subroutine Subroutine
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Subject	Articles with example C code Programming constructs Source code Subroutines University of Cambridge Computer Laboratory Holism
gold:hypernym	Sequence
prov:wasDerivedFrom	http://en.wikipedia.org/wiki/Subroutine?oldid=1074538395&ns=0
Wikipage page ID	32177451 (xsd:integer)
page length (characters) of wiki page	51731 (xsd:nonNegativeInteger)
Wikipage revision ID	1074538395 (xsd:integer)
has abstract	In computer programming, a subroutine is a sequence of program instructions that performs a specific task, packaged as a unit. This unit can then be used in programs wherever that particular task should be performed. Subroutines may be defined within programs, or separately in libraries that can be used by many programs. In different programming languages, a subroutine may be called a routine, subprogram, function, method, or procedure. Technically, these terms all have different definitions, and the nomenclature varies from language to language. The generic, umbrella term callable unit is sometimes used. The name subprogram suggests a subroutine behaves in much the same way as a computer program that is used as one step in a larger program or another subprogram. A subroutine is often coded so that it can be started several times and from several places during one execution of the program, including from other subroutines, and then branch back (return) to the next instruction after the call, once the subroutine's task is done. The idea of a subroutine was initially conceived by John Mauchly during his work on ENIAC, and recorded in a January 1947 Harvard symposium on "Preparation of Problems for EDVAC-type Machines". Maurice Wilkes, David Wheeler, and Stanley Gill are generally credited with the formal invention of this concept, which they termed a closed subroutine, contrasted with an open subroutine or macro. However, Turing had discussed subroutines in a paper of 1945 on design proposals for the NPL ACE, going so far as to invent the concept of a return address stack. Subroutines are a powerful programming tool, and the syntax of many programming languages includes support for writing and using them. Judicious use of subroutines (for example, through the structured programming approach) will often substantially reduce the cost of developing and maintaining a large program, while increasing its quality and reliability. Subroutines, often collected into libraries, are an important mechanism for sharing and trading software. The discipline of object-oriented programming is based on objects and methods (which are subroutines attached to these objects or object classes). In the compiling method called threaded code, the executable program is basically a sequence of subroutine calls. (en)
foaf:isPrimaryTopicOf	http://en.wikipedia.org/wiki/Subroutine
is gold:hypernym of	Null function Wrapper function Thunk Convenience function User exit Stored procedure Leaf subroutine Matroid oracle
is Wikipage redirect of	Local variables, recursion and reentrancy Auxiliary subroutine Callable unit Closed subroutine Optimization of subroutine calls Function (computer science) Function call Functions (programming) Leaf function Func Function (Programming) Function (computer programming) Function (computing) Function (programming) Function computer science Activation framework Algorithm function Called routine Caller (programming) Jump to subroutine Sub program Sub routine Subprogram Subprogram (programming) Subprograms Subroutine call Subroutines Method invocation Procedure (computer science) Procedure (computing) Procedure (programming) Procedure call System routine
is Link from a Wikipage to another Wikipage of	Fletcher's checksum Fold (higher-order function) Foobar For loop Foreign function interface Forth (programming language) Fortran Forward declaration Greater-than sign List of terms relating to algorithms and data structures Local variable Local variables, recursion and reentrancy Logic error Macro (computer science) Macro and security Magic (programming) NOP (code) NWScript NaN Nm (Unix) Noddy (character) Nord Programming Language Ntoskrnl.exe Null function Number One Electronic Switching System Numerical differentiation

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