Introduction to c programming
- 1. Introduction of C Programming www.programmingcampus.com www.programmingcampus.com
- 2. What is ProgrammingLanguage? • An artificial language used to write instructions that can be translated into machine language and then executed by a computer. • There are many programming languages. Like C, C++, Perl, BASIC, COBOL, Java, etc. www.programmingcampus.com
- 3. Types of ProgrammingLanguage • Programming languages are fall into three broad categories. • Machine Language. • Assembly Language. • High level Language. www.programmingcampus.com
- 4. Machine Language • MachineLanguage is basically the only language which computer can understand. • machine code, which is represented inside the computer by a String of binary digits (bits) 0 and 1. • The symbol 0 stands for the absence of Electric pulse and 1 for the presence of an electric pulse . • For Example: • 1 is written in machine language as 0001. www.programmingcampus.com
- 5. Assembly language • Itwas developed to overcome some of the many inconveniences of machine language. • in which operation codes and operands are given in the form of alphanumeric symbols instead of 0’s and l’s. • These alphanumeric symbols will be known as mnemonic codes and can have maximum up to 5 letter combination • For example: • ADD – Addition • SUB – Subtraction. www.programmingcampus.com
- 6. High-level Language • Highlevel computer languages give formats close to English language. • High-level languages are basically symbolic languages that use English words and/or mathematical symbols rather than mnemonic codes. • Each instruction in the high level language is translated into many machine language instructions thus showing one-to-many translation. www.programmingcampus.com
- 7. Introduction to CProgramming • It is developed by Dennis Ritchie in 1970 at Bell Labs. • In 1983 American National Standards Institute(ANSI) appointed a technical committee to define a standard for C. • The committee approved a version of C in December 1989 which is now known as ANSI C. • Used to develop UNIX. www.programmingcampus.com
- 8. Basic Structure ofC program • Documentation section • Link section • Definition section • Global declaration • main() Function section { Declaration part Executable part } • Subprogram section www.programmingcampus.com
- 9. • Document Section It consists a set of comment lines giving program details. • Link Section It provide the instruction to the compiler to link function from the system library. • Definition Section It define all symbolic constants. • Global Declaration Section It declare variable & function global which can be use in entire program. We can use them more than one function. www.programmingcampus.com
- 10. • main() functionsection – This section content two parts..Declaration part & Execution part. – Declaration part declare all variables used in execution part. • Subprogram Section – Subprogram section contain all the user define functions which are called in main() function. www.programmingcampus.com
- 11. Simple C Program #include<stdio.h> void main() { printf(“ProgrammingCampus”); } Output: ProgrammingCampus www.programmingcampus.com