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What is C programming language, Characteristics, Basic structure, Preprocessor directive, Applications, Facts & "Hello World"

What is C language

Ans. C is a high-level and general-purpose programming language that is ideal for developing firmware or portable applications. Originally intended for writing system software, C was developed at Bell Labs by Dennis Ritchie for the Unix Operating System in the early 1970s.

C programming is an imperative, procedural, and general-purpose computer programming language developed in 1972 by Dennis M. Ritchie at Bell Telephone Laboratories to develop the UNIX operating system.

C is the most widely used computer language.
The main features of the C language include low-level memory access, a simple set of keywords, and a clean style, these features make the C language suitable for programming systems such as operating systems or compiler development.

*Characteristics of C language

It is a robust language with a rich set of built-in functions and operators that can be used to write any complex program. The C compiler combines the capabilities of an assembly language with features of a high-level language. Programs Written in Care are efficient and fast.

*Explain the basic structure of the c program

Consists of comments, some description of the program, programmer name, and any other useful points that can be referenced later. Provides instruction to the compiler to link function from the library function. The basic structure of C programming: To write a C program, we first create functions and then put them together.

*What is the preprocessor directive in c?

Before a C program is compiled in a compiler, source code is processed by a program called a preprocessor. This process is called preprocessing. Commands used in preprocessor are called preprocessor directives and they begin with the “#” symbol.

*Why learn C programming?

The C programming language is ESSENTIAL for students and working professionals to become great software engineers, especially when working in the software development domain.

I'm going to list some of the key benefits of learning C programming:
  • Easy to learn.
  • Structured language.
  • It produces efficient programs.
  • It can handle low-level activities.
  • It can be compiled on a variety of computer platforms.

*Facts about C :
  • C was invented to write an operating system called UNIX.
  • C is a successor to the B language that was introduced in the early 1970s.
  • The language was formalized in 1988 by the American National Standard Institute (ANSI).
  • The UNIX operating system was entirely written in C.
  • Today C is the most used and popular system programming language.
  • Most of the latest generation software has been implemented using C.
  • Today's most popular MySQL Linux and RDBMS operating systems have been written in C.

"Hello World" using Programming C :

Just to give you a little bit of excitement about C programming, I'm going to give you a little conventional Hello World programming.

#include <stdio.h>

int main()
{
   printf("Hello, World..!");
   return 0;
}


*Applications of C Programming :

C was initially used for system development work, particularly the programs that make up the operating system.
C was adopted as a system development language because it produces code that runs almost as fast as code written in assembly language. 


*Some examples of the use of C are:
  • Operating Systems
  • Language Compilers
  • Assemblers
  • Text Editors
  • Print Spoolers
  • Network Drivers
  • Modern Programs
  • Databases
  • Language Interpreters
  • Utilities

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