The C Programming Language for IT & CS' Students

C Programming Language:

What is C Programming Language?

• Derived from 2 programming languages (1)BCPL(Basic Combined Programming Language) by Martin Richards and  (2) B by Ken Thompson. 
• Developed by Dennis Ritchie at Bell Labs during early 1970's.
•  Is an example of a structured language 

HOW TO OPEN TURBO C IDE?

  First locate TC.EXE in C:\Tc\Bin and double click

Working With Programs 

•  Creating a New Program

First click FILE then NEW OPENING on EXISTING PROGRAM -Open or F3.

• Saving A Program

Simply click SAVE or press F2 on your keyboard.

• Running A Program

 Click Run or Ctrl+F9

• Sample Program

//my first program in C

#include

int main()

{

printf("Hello World");

return 0;

}

• Dissection:
  

1. Comment - is a piece of source code discarded from the code by the compiler types

• //comment
• /*block of comment*/

     2. Preprocessor directive - are lines included in the code of our programs that are not program statements but directives for the preprocessor. These lines are always preceded by a hash sign (#). The preprocessor is executed before the actual compilation of code begins, therefore the preprocessor digests all these directives before any code is generated by the statements.

3. Main Function  - is the point by where all C programs begin their execution.

4. printf -is the standard output stream in C.

5. The return instruction causes main() to finish and return 0.

That's all! Any questions?