Text of the program consists of three parts. This is the title, description, operators. The program header contains the name of the program. For ETH version, you must specify the source and destination data for the program – files for input and output. By default, the input file is associated with a computer keyboard, and file output – to the monitor screen. In Turbo Pascal header has ornamental value and its use is not mandatory.
Descriptions – are symbolic structures for describing the properties of objects in the program. All objects of the program it is necessary to specify in this part of the program. Operators – this character design for the description of the program of action on objects. Operators must be between the words begin and end. These words are considered staples
In one line of text, you can place multiple statements or descriptions. Therefore, it is necessary between operators to put a separator character. Used to separate statements with a semicolon (;). After the last statement does not necessarily put a separator.
Small and large letters are considered equivalent to (equivalent). The name of any object in the program recording may contain only letters, numbers, and the underscore character (_). The name can not start with a digit. No other types of characters in the record names are not allowed.