Introduction to C Programming Language

C Programming Language is a general purpose and structured programming language developed by ‘Dennis Ritchie’ at AT & T’s Bell Laboratories in the 1972s in USA.
It is also called as ‘Procedural Oriented Programming Language.’
C is not specially designed for specific applications areas like COBOL (Common Business-Oriented Language) or FORTRAN (Formula Translation). It is well suited for business and scientific applications. It has some various features like control structures, looping statements, arrays, macros required for these applications.

The C language has following numerous features as:

Portability
Flexibility
Effectiveness and Efficiency
Reliability
Interactivity

Execution of C Program :
C program executes in following 4 (four steps).

1. Creating a program:
An editor like notepad or wordpad is used to create a C program. This file contains a source code which consists of executable code. The file should be saved as ‘*.c’ extension only.

2. Compiling the program:
The next step is to compile the program. The code is compiled by using compiler. Compiler converts executable code to binary code i.e. object code.

3. Linking a program to library:
The object code of a program is linked with libraries that are needed for execution of a program. The linker is used to link the program with libraries. It creates a file with ‘*.exe’ extension.

4. Execution of program:
The final executable file is then run by dos command prompt or by any other software.

Steps i n C program execution

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