A programming language is an artificial language that can be used to control the behavior of a machine, particularly a computer.[1] Programming languages, like natural languages, are defined by syntactic and semantic rules which describe their structure and meaning respectively. Many programming languages have some form of written specification of their syntax and semantics; some are defined only by an official implementation.
Programming languages are used to facilitate communication about the task of organizing and manipulating information, and to express algorithms precisely. Some authors restrict the term "programming language" to those languages that can express all possible algorithms;[2] sometimes the term "computer language" is used for more limited artificial languages.
Thousands of different programming languages[3] have been created, and new languages are created every year.
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