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Chapter 1

In chapter 1 we will learn about

  1. Data Types
  2. Identifiers and Variables

Data Types

Data type defines the type of data that a variable can store. Example, "1234" is an integer type of data and 2.4 is a float value.

C Language had 5 main data Types
Integer (int)
double floating-point (double)
character (char)
Valueless (void)

Type Size in Bits Minimal Range
int 16 or 32 -32767 to 32767
float 32 1E-37 to 1E+37 (with six digits of precision)
char 8 -127 to 127
double 64 1E-37 to 1E+37 (with ten digits of precision)
C Codes