The computer language C + + is now probably one of the main computer languages used in the programming of commercial software products. Java Programming Language is the main competitor language C + +, but would like to point out that many programmers who threw a C + + for Java, returns to work with the computer language C + + and not without reason. The computer language C + + is a powerful and dramatic leap in the development of programming. A very large variety of programmers around the world are using C + + in the development of different kinds of projects. The data in the programming language C + + are always kind. The type of data used in C + + is a kind of model or template, which can draw different meanings. In C + +, there are these types of data as a whole types of data, fractional types of data and text data types. For example, the number of a type of data can only be integer numbers, but a fractional number of data types naturally only fractional. Please be aware that every operation carried out nearly fractional number, that is, if, for example, the fractional number recorded as 1.0, it is in any case will be stored in the computer nearly as possible, it is not equal to 1.0, and 0.99999 or 1.0002, etc. In the programming language C + + data types are identified by the special IDs or keywords. Keyword Int. means in C + + a standard type. The peculiarity of the application of a type in C + + that the value of a type can not have a decimal point. There is also a character type as char, short and long, which are a type of data. These data are stored numeric value or code of character. But the entire data types in C + + can be divided into sign (signed) data and unsigned (unsigned) dannyh.Osobennost types of coded data that are best left bit keeps a certain mark, while the other remaining bits contain value. In the unsigned types, all bits are used to indicate a value. Key words float, double and long double are used to denote fractional types in C + + and indicate the number of floating-point. In the programming language C + +, there is the possibility of applying modifiers types of data. Destination of modifiers types of data that they change the accuracy of reporting and a range of values.