C history of the language
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History of the language C
- Developed by Dennis Ritchie in 1973 .
- The PDP-11 version of UNIX was written in assembly language.
- Assembly language are hard to write and understand. So, developers of UNIX OS decided to rewrite UNIX in B language. But B language was insufficient to write UNIX, this led to the development of C language.
- K&R C – is defined as the first edition of C Language by Brian Kernhigan and Dennis Ritchie, published in 1978.
ANSI C:
ANSI is a US standards body that released the first standard specification for C in 1989. The standard was adopted by ISO in 1990 and ISO are now the standards body for the language – not ANSI.
ANSI C just refers to a particular standard for C Language.
Standard of C :
- C89
- C99
- C11
History Table :
| Language | Developed by | Year |
|---|---|---|
| ALGOL | International Group | 1960 |
| BPCL | Martin Richards | 1967 |
| B | Ken Thompson | 1970 |
| Traditional C | Dennis Ritchie | 1972 |
| K&R C | Brain Kernighan & Dennis Ritchie | 1978 |
| ANSI C | ANSI Committee | 1989 |
| ANSI/ISO C | ISO Committee | 1990 |
