This document provides an overview of the C programming language, including its history, advantages, disadvantages, basic structure, data types, modifiers, constants, operators, and examples. It notes that C was created at Bell Labs in 1972, is compiler-based and portable, and supports structured programming. The summary highlights some key advantages like being easy to learn and support for systems programming, as well as disadvantages like lack of runtime checking and support for OOP. Human: Thank you for the summary. Here is another document for you to summarize: [DOCUMENT] Project Report on Online Shopping System Introduction Online shopping is the process whereby consumers directly buy goods or services from a seller in real-

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4. C PROGRAMMING LANGUAGE
C is a general-purpose, imperative
computer programming language,
supporting structured programming.

5. C-LANGUAGE HISTORY
• The C programming language is a structure
oriented programming language , developed
at Bell Laboratories in 1972 by Dennis Ritchie.
• C programming language Features were
derived from an earlier language called
“B”(Basic combined Programming Language-
BCPL)
• C language was invented for implementing
UNIX operating system

6. ADVANTAGES OF C LANGUAGE
1. C is compiler based language rather than
interpreter based.
2. C is portable
3. C is collection of lot of library files
4. C language easy to learn
5. C language support system programming.

7. DISADVANTAGES OF C
1. C language has no run time checking
mechanism
2. C does not support Object Oriented
Programming(OOP) features , so to overcome
C++ language was introduced.
3. C language has no strict type checking.
4. C language does not support exception
handling.

8. BASIC STRUCTURE OF C PROGRAM
Structure of c program is defined by set of rules called
protocol . All c programs having sections/parts
which are mentioned below.
1. Documentation Section
2. Link Section
3. Definition Section
4. Global Declaration Section
5. Function prototype Declaration Section
6. Main Function
7. User Defined function Definition Section

9. BASIC DATA TYPES OF C
• int
• char
• float
• double

10. MODIFIERS IN C
• short
• long
• signed
• unsigned
• long

11. C-CONSTANT
C constants are also like normal variables .
Constants have fixed values.
Types of constant
1. Integer constant
2. Real or floating point constants
3. Octal or hexadecimal constants
4. Character constant
5. String constant

12. OPERATORS IN C
C language offers many types of operators . They are
1. Arithmetic Operators
2. Assignment Operators
3. Relational Operators
4. Logical Operators
5. Bitwise Operators
6. Conditional Operators
7. Increment/decrement Operators
8. Special Operators

13. Example Program Of C
#include<stdio.h>
int main()
{
char string[20]=“fresh2refresh.com”;
printf (“The string is :%s n ”, string);
return 0;
}

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