The Best C Tutorial for Beginners – Is It Worth Learning C for 2019?

C is the ‘Mother of all programming languages’ and is the most prominent programming languages. If you want to step your foot and conquer the realm of programming, you have come to the right place! For a novice at programming, C is the best language to start off with. In this C tutorial, you will be learning:

  • What is C
  • Why C is important
  • C’s features, pros, and cons
  • Why do you need to explore this language more

C is one of the most primitive languages as it is closely associated with low-level languages. It is a well-established fact that C is a high-level programming language that lies at the low-level end spectrum of a high-level language. Hence, a strong foundation in C is a must if you want to develop a career in programming.

It is the base to learn problem-solving and programming as it involves developing a logistical approach to solving the most basic problems you have encountered in your mathematics textbook in elementary school or day to day real-life situations which require a specific algorithm to be solved.

Excited to explore the C Tutorial for Beginners? Let’s begin.

1. What is C Programming Language?

C is a procedural programming language or a general purpose programming language that was developed by Dennis Ritchie at AT&T’s Bell laboratories in 1972. It is an amazing and simple language that helps you develop complex software applications with ease. It is considered as the mother of all languages. C is a high-level programming language that provides support to a low-level programming language as well.

C consists of a series of concepts ranging from variables, functions, operators, scope and much more. We would be exploring all of these topics in great detail in our next C tutorial.

First of all, let’s understand each term related to C and why is it important for you to start learning C.

2. Understanding C Language

From the above definition, we understood what is C programming but,

  • What is a procedural programming language?

A procedural language follows well-organized architecture by specifying all the steps that the computer must take to reach the desired output. Programming languages like C, Fortran, BASIC, Pascal, and C++ follow procedural programming. It is a programming paradigm consisting of a set of a computational hierarchy of steps to execute a program.

  • What are high level and low-level programming language?

A high-level language is similar to the human language and is easy to understand and write. High-level language focuses more on arithmetic operations, program efficiency, and easiness in coding. In other words, a high-level programming language is in contrast to machine-level languages. It is in close association with the language we converse in, that is, the human language. We use it in developing the program in an easy and understandable way.

A low-level language is a very machine friendly language, and so writing programs in a low-level language are very complex for humans.

3. History of C

After the introduction of the C language, previously developed programming languages like ALGOL, COBOL, B soon lost its significance and drastically shook their well-established niche in the domain of programming.

C was developed by Dennis Ritchie in 1972. Ritchie aimed at improving B language as it was considered slow and lacked features such as byte addressability. The development of C language was followed by the origin of Unix, the first operating system implemented in a high-level language.

In 1978, Ritchie and Kernighan published the first edition of the book “The C programming language” referred to as the K&R C version of the C language. The second and improved version of the book was published by ANSI (American National Standard Institute) C standard in 1989.C grew into new and improved versions over the years. The latest version of C language is C18, extending no new features but simply certain technical corrections to anomalies in C11.

Given below is an image of the detailed history of how C evolved.

Evaluation of C Programming Language

4. Why C?

The C tutorial for beginners is incomplete without the knowledge of why C programming is used. C language was developed because of many facts that made it a very specific and convenient language.

C compiler supports both assembly language features and also high-level language and hence, it suits well for writing both system applications and also most of the business packages.

It is a portable language and hence, once the code is written, it can run on any computer system and it is basically used for developing Operating Systems. The first Operating System developed using C was Unix. Using assembly language would have provided us more speed and maximum control over the program but it lacks portability.

This is the main strength of the C programming language, that it is capable of working on various computer architecture being flexible and reliable for users. Moreover, assembly language has extremely powerful programs. But it is really difficult to make large applications. On the other side, it becomes easier to use those library system function defined in C.

5. Why should beginners learn the C language?

C is the most basic language and almost all programming languages are derived from C. Other programming languages inherited their features from C and hence C is called the mother of all programming languages.

If you learn C, it becomes easy for you to learn programming languages like Ruby, Python, PHP, C++, JAVA, Lua and more.

6. What is a Compiler in C?

Till now, in this C tutorial, we heard the term compilers many times, but what are compilers in C? Why are they used? Let’s get the answers to these questions:

A compiler is a computer program that converts our program code to machine understandable code(binary code). The C compiler is a software application for converting the code and make it machine-friendly.

As we discussed earlier that the high-level programming language is the one that is machine independent or human understandable code and so we can also state the process of compilation is referred to as the conversion of a high-level language to low-level language.

7. How to Write Program In C?

Now, taking a break from the theoretical portion, we are now moving towards the practical approach. First of all, we will start with the simplest program to print a message.

#include <stdio.h>
int main()
{
// printf() displays the string inside quotation
printf("Welcome to DataFlair! C tutorial");
return 0;
}

Output – Welcome to DataFlair! C tutorial

Get a complete guide for – Structure of C Program

Understanding every line of code

  • #include <stdio.h> – It includes a preprocessor command. By this command, we add all the files and content of stdio.h in the program.
  • int main() – Execution of any C program begins with this step.
  • printf() – It sends the formatted output to the screen.
  • return 0 – This statement shows the end status, the function return whatever argument passed in return.

8. Features of C Programming

There are many features or we can say reasons to learn C programming languages that make it popular in the industry. The salient features of the C language include:

  1. Simple and efficient – The syntax style is easy to comprehend. We can use C to design applications that were previously designed by assembly language.
  2. Memory Management – It allows you to allocate memory at the runtime, that is, it supports the concept of dynamic memory allocation.
  3. Dynamic Memory Allocation- When you are not sure about the memory requirements in your program and want to specify it at the run time, that is, when you run your program, you can do it manually.
  4. Pointers – C language provides a pointer that stores the memory address as its value. Pointers are useful in storing and accessing data from memory. We will study this in detail in our upcoming tutorials.
  5. Case Sensitive – It is pretty clear that lowercase and uppercase characters are treated differently in C. It means that if you write “program” and “Program” both of them are different in C as the ‘p’ in “program” is lowercase format and the ‘P’ in Program is in uppercase format.
  6. Compiler Based – C is a compiler based language, that is, to execute a code we first need to compile it.
  7. Structure Oriented/Modular – C is a structured programming language. That means you can divide your code and task within a function to make it interactive. These functions also help in code reusability.

9. Applications of C Language

There is no meaning of mastering the C language, until and unless you know its real-time uses. Following are some of its applications of C:

  1. It is used in the development of Operating Systems and Embedded Softwares. For example, the Unix Kernel was born out of C as discussed earlier.
  2. It comes in handy when designing a compiler for other programming languages.
  3. Data structures and algorithms are implemented in C
  4. It acts as a base language to develop new languages. For instance, C++ was developed from C.
  5. Computer applications can be developed using C.
  6. Firmware is designed for electrical, industrial and communication appliances using C.

10. Advantages of C Programming Language

In this section of the C tutorial, we are going to list all the benefits of C for the user:

  1. Portable – It is easy to install and operate and the result file is a .exe file that is easy to execute on any computer without any framework.
  2. Compiles faster – C has a faster compiler that can compile a 1000 lines of code in seconds and optimize the code to give speedy execution.
  3. User-defined functions – C has many header files that define a lot of functions, making it easier for you to code. You can also create your functions; these are called user-defined functions (UDFs).
  4. C has a lower level of abstraction – C is a very clear and descriptive language. You can, in a way, directly see into the machine without any conceptual hiding and so learning C first makes the concepts very clear for you to proceed.

Note: Abstraction means Data Hiding

Explore more Advantages and Disadvantages of C

11. Companies Using C

Almost all the companies that work on firmware, gaming, networking, graphics use C. Some of the companies that use C to write algorithms are :

Companies Using C Programming Language

12. Career Aspects in C Programming Language

Up till now, in this C tutorial, we learned all the basic concepts of C programming. But, what about its career opportunities?

“There is always a way to every door.”

C language is always in demand and you can grab a list of opportunities for your career growth. Many people talk about moving to the advanced languages like java, python but still, the core of every machine remains the same – C.

There are dozens of jobs available if you are clear with your programming concepts.

  • Companies that work on embedded programming can be an excellent option.
  • If you are interested in Robotics and other security devices or electronic devices, you should learn c, embedded C and the basic algorithms, different microcontrollers.
  • You can get the position of a Technical Engineer or a Team Leader if you are good in Data Structure.

You don’t need to search for career possibilities, just make yourself confident about what you learn and implement, using logic, applying them with proper syntax, assuring that you follow all the protocols of that language.

Hence, you can build your desired career if you excel in it what you study.

Salary Prospects

The more you learn, the more you earn.”

This comes to be the first concern as of now. Yes, money is important but at the starting of your career whether you are a student or someone looking to learn new technology, focus on the ways that can help you grow.

C provides a variety of career aspects and if you are aware enough about the language, you can surely sustain in the market.

13. Summary

C is considered as the mother of all programming languages as it has built a strong base for all programming languages like Java, Python, C++, etc. Let us summarise what we have learned in this C tutorial. We understood the history of C language, and also how it became so popular. We also discussed some of the basic features, advantages, and limitations that the C language possesses. At last, we discussed the career and salary prospects in C language.

Hopefully, C tutorial for beginners helped you in an easy understanding of C programming language. Please share your feedback in the comment section below.

Learn the ABCs of Programming in C with Syntax of C

2 Responses

  1. SYED TARIQ AHMED says:

    the introduction section in C is very easy to understand , help me to get more about it and make me to move forward

  2. DataFlair Team says:

    Hello Syed Tariq Ahmed,
    Thanks for the appreciation. You can learn to program in C easily; just follow the links on our sidebar for all the tutorials and practice all the examples along the way.

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