- The C programming language is a structure oriented programming language, developed at Bell Laboratories in 1972 by Dennis Ritchie
- C programming language features were derived from an earlier language called “B” (Basic Combined Programming Language – BCPL)
- C language was invented for implementing UNIX operating system
- In 1978, Dennis Ritchie and Brian Kernighan published the first edition “The C Programming Language” and commonly known as K&R C
- In 1983, the American National Standards Institute (ANSI) established a committee to provide a modern, comprehensive definition of C. The resulting definition, the ANSI standard, or “ANSI C”, was completed late 1988.
C PROGRAMMING LANGUAGE STANDARDS:
- C89/C90 standard – First standardized specification for C language was developed by the American National Standards Institute in 1989. C89 and C90 standards refer to the same programming language.
- C99 standard – Next revision was published in 1999 that introduced new features like advanced data types and other changes.
C11 AND EMBEDDED C LANGUAGE:
- C11 standard adds new features to C programming language and library like type generic macros, anonymous structures, improved Unicode support, atomic operations, multi-threading and bounds-checked functions. It also makes some portions of the existing C99 library optional and improves compatibility with C++.
- Embedded C includes features not available in C like fixed-point arithmetic, named address spaces, and basic I/O hardware addressing.
- Operating systems, C compiler and all UNIX application programs are written in C language
- It is also called as procedure oriented programming language. The C language is reliable, simple and easy to use. C has been coded in assembly language.