Explain various classes of datatypes of C 

Ans:
Following are the major classes of data types in C language:
1. Primary data types: Also known as fundamental/basic data types. All C
compliers support four basic data types namely: integer(int), character(char),
floating(float), and double precision floating point (double). Then there are extended
data types such as long int, double int.
2. Derived data types: also known as secondary or user-defined data types. These
data types, derived from basic data types, include arrays, pointer, structure, union,