- C Language was not called C at the beginning. It has been named as C after passing many stages of evolution. Evolution of C:
ALGO -> BCPL -> B -> Tradition C -> K&R C -> ANSI C -> ANSI/ISO C -> C99.
- It was developed at Bell Laboratories in 1972 by Dennis Ritchie.
- Why it is named as C ? There is no such logic behind the naming of C Language.
It was developed to cover all the inabilities of B language (simplified version of BCPL). So, it was just named C as it is next to B in the English alphabets.
- C is the only programming language that exists for such a long period and still it is widely used.
- Unix was one of the first operating system kernels implemented in a language other than assembly and that was C.
- Previously, C was considered as the high level language but today many programmers consider it as a low level language as it supports only scalar operations.
- C18 is the latest version of C programming Language published in June 2018.
- “? : ” is the only ternary operator in C language.
- “sizeof” is the only operator which is also a keyword.
- In printf() and scanf(), f stands for formatted not function.
- Compiler doesn’t know header file, preprocessor processes these and expands souce code.
- Header file name can be included in 2 ways, (a) Using angular brackets (b) Using double inverted comma.
- Compiler generates assembly code not machine code and then assembler generates the machine code.
- sizeof operator cannot tell us the size of functions because this operator works on compile time and functions loads in memory at run time.
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