Introduction to c
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The C language is a powerful and easy-to-learn programming language that is case-sensitive, highly portable, and suitable for systems programming. Developed by Dennis Ritchie between 1969 and 1973 and standardized by ANSI in 1989, it has a small set of keywords and a large library of built-in functions. However, it can be complex and error-prone, making debugging and modification challenging.
![C program is executed in 3 phases:
Create a source code file.
[Empty file(input) – Source Code
file(output)]
Compilation
[Source code file(input) – object
file(output)]
Linking
[Object File(input) – Executable File
(output)]](https://image.slidesharecdn.com/introductiontoc-150326084816-conversion-gate01/85/Introduction-to-c-10-320.jpg)
Introduction to c
- 2. C language is very easy and a powerful computer programming language bbecause it is very small and structured. C language is a Middle level language i.e. suitable for systems programming. It is a case sensitive language. It is highly portable language. C is a procedural or sequential language. It is easy to learn and understand. It is a small language
- 3. C language was invented by DENNIS RITCHIE at Bell Laboratories in between 1969 1nd 1973. C language was standardized by ANSI in 1989 and known as ANSI C.
- 5. Portability- C is a machine independent and highly portable language. Robustness- C has a set of built in functions and operators. Easy to understand and learn as it has only 32 keywords. Fast and Efficient Flexible- It is not only for system but also for embedded system commercial data processing. Integration with UNIX. C has a large library of functions.
- 6. Complexity- Difficulty in solving complex problems. Difficult to debug. Difficult to modify. Error-prone Diffficult to write large programs.
- 7. Character set Data Types Constants Keywords Variables Grammer(Syntax & semantics
- 8. Documentation Section (optional) Link Section (optional) Defining Section (optional) Global Declaration Section (optional) Main Function Section ( ) { Declaration part Executable part } Subprogram Section (optional) Function 1 Function 2 Function n
- 9. /* This is a sample C program. */ #include <stdio.h> #include <conio.h> main ( ) { clrscr ( ); printf (“Hello n”); getch ( ); }
- 10. C program is executed in 3 phases: Create a source code file. [Empty file(input) – Source Code file(output)] Compilation [Source code file(input) – object file(output)] Linking [Object File(input) – Executable File (output)]