![]() Some languages have both, with the basic language defined by a standard and extensions taken from the dominant implementation being common. Some languages are defined by a specification document (for example, the C programming language is specified by an ISO Standard) while other languages (such as Perl) have a dominant implementation that is treated as a reference. The description of a programming language is usually split into the two components of syntax (form) and semantics (meaning), which are usually defined by a formal language. Most programming languages are text-based formal languages, but they may also be graphical. ![]() ![]() When compiled and run, it will give the output " Hello, world!".Ī programming language is a system of notation for writing computer programs. The gray lines are comments that help explain the program to humans in a natural language. The source code for a simple computer program written in the C programming language.
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