What do you understand by documentation of a programing language?

What do you mean by documentation in concept of programing language?

The Documentation

• The documentation is a collection of record in a historical form.
• It involves storing of a record in a history.
• It is an organization of a historical record.
• It can be maintaining a record of history in software system.
• It can be prepared between different phases of a system development.
• The documentation is a continue process in a programing.