Define the Data Types of c language?

The C has a concept of 'data types' which are used to define a variable before its use and the definition of a variable will assign storage define the type and for the variable of data that will be held in the location.

Fundamental Data Types available in are

Data Type                  Description                             Typical Memory Requirements

int                                integer quantity                              2 bytes or one word

float                             floating point number                     1 word(4 bytes)

double                         double precision number                 2 words(8 bytes)                    

char                            single character                               1 byte

Please note that there isn't a boolean data type Recent C++ compilers do have a boolean datatype.