C PROGRAMMING TUTORIAL

In computing, C is a general-purpose programming language initially developed by Dennis Ritchie between 1969 and 1973 at AT&T Bell Labs. Like most imperative languages in the ALGOL tradition, C has facilities for structured programming and allows lexical variable scope and recursion, while a static type system prevents many unintended operations. Its design provides constructs that map efficiently to typicalmachine instructions, and therefore it has found lasting use in applications that had formerly been coded in assembly language, most notably system software like the Unix computer operating system.

C is one of the most widely used programming languages of all time,and C compilers are available for the majority of available computer architectures and operating systems.

Many later languages have borrowed directly or indirectly from C, including C#, D, Go, Rust, Java, JavaScript, Limbo, LPC, Objective-C, Perl, PHP,Python, Verilog (hardware description language) and Unix's C shell. The most pervasive influence on these languages (excluding Python) has been syntactical, and they tend to combine the recognizable expression and statement syntax of C with underlying type systems, data models, and semantics that can be radically different. C++ and Objective-C started as preprocessors for C; C++ is currently nearly a superset of C, while Objective-C is a strict superset of C.