|C is one of the most widely used programming language and C compilers are available for the majority of available computer architectures and operating systems.
The C programming language knows different versions:
- The "K&R" C
In 1978 Dennis Ritchie and Brian Kernighan published the first widely available book on the C programming language.
- "C89" or "ANSI C"
In 1989 the American National Standards Institute (ANSI) published a standard for C.
In 1990 the "C89" specification was approved by the International Organization for Standardization (ISO) as an international standard.
ISO later released an extension to the internationalization support of the standard in 1995, and a revised standard (known as "C99") in 1999.
In 2011 the current version of the standard (now known as "C11") was approved.