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What is C Programming Language? Basics, Introduction, History

C is a general-purpose, procedural programming language that was developed in the early 1970s by Dennis Ritchie at Bell Labs. It is a low-level language, which means that it is closer to the machine language that computers understand, and is often used to build operating systems, compilers, and other applications that require direct access to hardware resources. C is known for its efficiency and performance, as well as its flexibility and control.

Some of the key features of C include:

  • C is a compiled language, which means that it is transformed into machine code that can be run on a computer.
  • C is a procedural language, which means that it is based on a series of functions that perform specific tasks.
  • C is a statically-typed language, which means that variables must be declared before they can be used, and their type must be specified.
  • C is a case-sensitive language, which means that uppercase and lowercase letters are treated as different characters.

C has a long history and has influenced many other programming languages, including C++, Java, and Python. It is still widely used today in a variety of applications, including operating systems, databases, and embedded systems.

C is a programming language that was developed by Dennis Ritchie at Bell Labs in the early 1970s. It was developed as a successor to the B programming language, which was used to write the Unix operating system.

C was designed to be a small and efficient language, and it quickly gained popularity because of its versatility and performance. It was used to write a wide range of software, including operating systems, compilers, and libraries.

Over time, C has evolved and has influenced the development of many other programming languages, including C++, Java, and Python. It is still widely used today in a variety of applications, including operating systems, databases, and embedded systems.

The design and evolution of C have been guided by a set of principles known as the "C philosophy," which emphasizes simplicity, portability, and efficiency. The C language has a long and influential history in the world of computer programming, and it continues to be an important language for many developers.

Here is a simple example of a C program that prints "Hello, World!" to the console:

#include <stdio.h>
int main(void) {
    printf("Hello, World!\n");
    return 0;
}

This program starts by including the stdio.h header file, which contains functions for input and output, such as printf(). The main() function is the entry point of the program and is where the program begins executing.

The printf() function is used to print a message to the console. The \n at the end of the message is a newline character, which causes the output to be printed on a new line.

Finally, the return 0; statement indicates that the program has been completed successfully.

To compile and run this program, you can use a C compiler such as GCC. For example, to compile the program, you can use the following command:

gcc -o hello hello.c

This will create an executable file called hello that you can run by typing ./hello at the command prompt. When you run the program, it should print "Hello, World!" to the console.

Summary

  • ā€˜Cā€™ was developed by Dennis Ritchie in 1972.
  • It is a robust language.
  • It is a low programming level language close to machine language
  • It is widely used in the software development field.
  • It is a procedure and structure oriented language.
  • It has the full support of various operating systems and hardware platforms.
  • Many compilers are available for executing programs written in ā€˜Cā€™.
  • A compiler compiles the rce file and generates an object file.
  • A linker links all the object files together and creates one executable file.
  • It is highly portable.

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Sundar  Neupane

Sundar Neupane

I like working on projects with a team that cares about creating beautiful and usable interfaces.

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