You might not see the C programming language everywhere, but it is invisibly everywhere. When you start your car, your car's mainboard probably uses C to talk to its different components. When you use your phone, whether iOS or Android, the very kernel of the operating system is written in C. You can't unsee C. Okay. Bad pun. But what is it with the letter C? When the C programming language. C (pronounced SEE ) is a computer programming language developed in the early 1970s by Ken Thompson and Dennis Ritchie at Bell Labs. They used it to improve the UNIX operating system. C is the precursor for almost all of the popular high-level languages available today. This book represents a comprehensive look at the C programming language and its features. C is arguably the most popular and flexible language that can build operating systems, complex programs, and everything in between. Its high efficiency and relative simplicity make it one of the most fundamental programming languages to get started with. Most of the operators available in C and C++ are also available in other C-family languages such as C , D, Java, Perl, and PHP with the same precedence, associativity, and semantics. This course is designed to take you from a beginner to an advanced C programmer. The repository contains all the source code, projects, problem sets, and additional resources to supplement your learning. Pronunciation The letter C is pronounced as /k/, which is similar to K or Q (u). It is sometimes said as /s/. The letter C 's name in English is cee (said as /ˈsiː/). Occasionally, the letter may sound like the letter S. In this Cheat Sheet, we will delve into the basics of the C language, exploring its fundamental concepts that lay the groundwork for programming. We will cover topics such as variables, data types, and operators, providing you with a solid understanding of the building blocks of C programming. The C programming language has been alive and kicking since 1972, and it still reigns as one of the essential building blocks of our software-studded world. C[c] is a general-purpose programming language created in the 1970s by Dennis Ritchie. By design, C gives programmers relatively direct access to the features of typical CPU architectures, customized for the target instruction set.