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C++ Tutorials > Introduction to C++ > Fundamental Data Types

The fundamental data types are at the lowest level, which means that they are used for actual data representation in the memory. The fundamental data types supported by C++ are listed in Table 1.1.

Data Types	No. of Bytes	Used for representing
char	1	characters and strings
int	4	integers
float	4	floating point numbers

Structure of a C++ program

Variable in C++