This document discusses different data types in C programming. It defines data types as specifying the type of data entered into programs and how that data is stored. The primary data types discussed are char, int, float, double, and void. Derived data types build upon primary types and include arrays, pointers, functions, and strings. User-defined data types can also be created using the typedef keyword to customize existing data types for specific needs. Common derived data types are pointers, arrays, unions, and structures.

1. -Duddukuru vinay teja
-227R1A7382
-AIM-B
-DATA TYPES IN “C”

2. DEFINITION :-
Data types specify what type of data we enter and
how the enter data stored into our programs..
 Data type is the type of the data that are going to
data associated with variables

3.  primary data types :-
ex:- Char, Int, Float, Double & Void
 DERIVED DATA TYPES:-
ex:- Array, Pointer, Function, String…
 User defined data types:-
ex:- Using Typedef Keyword

4.  Primary Data Type Are Those Are Already Defined In Programming
Languages Also Known In-built Data Type…
TYPE SIZE(BYTES) FORMAT
SPECIFIES
char 1 %c
int at least2,
usually 4
%d
float 54 %f
double 8 %if
void - -

5.  Using Primitive Data Types We Are Derived Another Data
Type Is Derived Data Type
 Derived Data Types To Add Some Functionality To The
Basic Data Types As Per Program Requirement
 Derived Data Types Are Formed By A Grouping Of Two Or
More Primary Types
1. Pointers
2.Arrays
3.Union
4.Structures

6.  Data Type That Derived From An Existing Data Type Is
Called User-defined Data Type(UDT)…
 We Can Create Own(customized) Data Type Using Primary
Data Type.
 Typedef Keyword :-
Using typedef keyword we can create own data type
SYNTAX :-typedef basicDT newDT;