C is a programming language for the hardware sector
The structured programming language C was developed in the 1970s by Dennis Ritchie for the Unix operating system. Nowadays the system is known as Linux. The programming language C is especially common in programming operating systems or hardware. C is especially popular in the hardware sector because programs written in C are especially fast. C is one of the most popular starting languages for students and pupils just starting out with programming. Vocational schools and universities often teach C in the first year, and then move on to C++. C++ is a higher programming language than C and offers object-oriented programming in addition to the functionalities of C. C programming is an important of frequently used programming language for hardware development, while C++ is used in software development.
C is the basis of many other programming languages
You can find more information on the C programming language on Wikipedia: https://en.wikipedia.org/wiki/C_(programming_language)