Is C Programming Still Used? (5 Things You Should Know)

C is a natural language. It’s used daily by millions of developers, many of whom develop complex software that has to run in various entities. There are several reasons why C is relevant and used today. Still, an excellent place to start is with the characteristics.

Here are the top 5 things you should know about C and why it is still relevant today!

Is C Programming Still Used? 

Programmers use C because it is a very efficient and easy-to-use language. Furthermore, it is a modular, object-oriented language that provides full interoperability with other programs. In addition, C is well-suited for performance libraries that allow applications to communicate and share data efficiently. Overall, C is a full-fledged programming language that has stood the test of time!

Therefore, C still plays a significant role in creating software. So, let’s find out the essence of this language!

1. Performance Libraries are Written in C

Programmers use C in many high-performance applications. Numerous different programming languages use C to create many high-performance libraries.

Operating systems, device drivers, compilers, interpreters, GUI applications, OS API libraries, embedded systems in appliances, and command-line utilities are all made in C.

As you can see, most programmers do not perceive a decline in the demand for C, and it has constantly been either first or second for 20 years.

Therefore, the use of C is widespread today and will be for a very long time. Every day, C-based systems and devices are all around us!

2. Used in all Major Operating Systems

C is everywhere. 

All embedded software, Java JVM, Python interpreters, Linux, Windows, Android, and iOS operating systems, are written in C. 

Additionally, studying C is more beneficial than learning many more accessible programming languages to understand how computers operate.

Most computer science or software engineering students will probably pick up C at some point!

3. Modular Systems Programming Language

Modular Systems Programming Language

C is a programming language for modular systems.

It is an incredibly “close to the hardware” programming language that is also very easy. 

As a result, an average C programmer can reasonably accurately predict what they are directing the CPU to perform for each instruction they type.

C is relatively rapid. However, compared to Swift or Java, C is extremely fast.

In general, one can expect that C will improve the modular approach, making it easy for future programmers to comprehend!

4. No Wastage in C’s Design

It’s nearly impossible to find a feature in C’s design that you don’t need. 

Some programmers can use C structs and invoke C functions. If they have a large algorithm that they would like to speed up, they can rewrite that portion in C and benefit from the increase in speed.

Additionally, C is a block-structured language. Each code is contained in a distinct block, making programming simple and reducing the likelihood of unfavorable side effects.

Block-structured programming is the entire purpose of the C programming language.

Many earlier languages tried to introduce this idea. Still, there were many shortcomings, apart from in C!

5. C is Irreplaceable

C is an irreplaceable programming language. Therefore, there isn’t a viable replacement.

You may speculate that C is for microcontroller programming and will likely remain so for some time because one can use C for

  • embedded programming and 
  • embedded firmware engineering 

In some cases, Java or Python cannot provide any amount of tweaking on software. However, you can get by with C++ if you use it very carefully, but at that point, you’re still writing and coding “C-with-classes.”

Overall, you can claim that there is not much that C can’t accomplish when compared with other languages!


C is an excellent programming language, and continued support for this language is justified.

It is one of the easiest programming languages to use. Once you understand how to write and execute it without errors, it works pretty efficiently.

Above all, C as a programming language will not be replaced by other languages soon. On the contrary, its role as one of the most efficient programming languages will continue!