Data Types

Introduction

To communicate with the computer, it is required to pass an appropriate value to the computer from the keyword.

The value passed may be of different types, viz. Single character, integer, decimal, string.

In each, the memory required is of different size. Such a defined type of value is called data type.

C supports several different types of data, each of which may be represented differently within the computers memory.

The memory requirement of each data type will determine the permissible range of values for that data type.

C data type can be broadly divided in two categories:

(a) Primary data types.

(b) Secondary data types.

Primary data types

Primary data types are independent data types. It's not derived from other basic or secondary data types.

There are five primary data types in C language:

1. Void

2. Character

3. Integer

4. Float

5. Double

Secondary data types

Secondary data types are also called as derived data types. Secondary data types are derived from the basic data types.

They are also five in number:

1. Array

2. Pointer

3. Structure

4. Union

5. Enum