What is C?
C is a general-purpose programming language developed in the early 1970s at Bell Labs by Dennis Ritchie. It has strongly influenced many modern languages (in both syntax and design), including C++, Java, and C#. C provides low-level access to memory and a compact set of keywords, making it both powerful and efficient for system-level programming.
Why Learn C?
Learning C helps you understand how computers work at a lower level. Concepts like memory management, pointers, and data structures are clearer when explored in C. Mastering C builds a solid foundation that transfers to other languages and domains such as embedded systems, operating systems, and high-performance computing.
Where is C Used?
C is widely used in areas where performance and efficiency are critical. Examples include: - Operating system kernels and utilities (e.g., Unix-like systems, many components of Windows) - Embedded systems in cars, appliances, and IoT devices - Compilers, interpreters, and other programming tools - High-performance libraries for scientific computing and game development
Key Features of C
- Compiled and statically typed for predictable performance - Direct memory access via pointers (manual memory management) - Small standard language with a portable standard library - Close-to-the-metal control while remaining portable across platforms
C Standards & Tooling
C is standardized by ISO (notable versions include C89/C90, C99, C11, C18, and C23). Popular compilers include GCC, Clang/LLVM, and MSVC, which make it possible to build portable code across platforms.