Examples of computer languages are:

• Programming language, a formal language designed to communicate instructions to a machine, particularly a computer
  • Command language, a language used to control the tasks of the computer itself, such as starting other programs
  • Machine code or machine language, a set of instructions executed directly by a computer's central processing unit
• Markup language, a grammar for annotating a document in a way that is syntactically distinguishable from the text
• Style sheet language, is a computer language that expresses the presentation of structured documents
• Configuration language, a language used to write configuration files
• Construction language, a general category that includes configuration languages, toolkit languages, and programming languages
• Query language, used to make queries in databases and information systems
• Modeling language, a formal language used to express information or knowledge, often for use in computer system design
• Data serialization format

A programming language is a formal constructed language designed to communicate instructions to a machine, particularly a computer. Programming languages can be used to create programs to control the behavior of a machine or to express algorithms.