VIDEO TO SHOW USE OF IF ELSE STATEMENT

VIDEO TO ADD TWO NUMBERS

TOKEN

What is token in C?

•Smallest unit in a program/statement.

•It makes the compiler understand what is written in the program.

•Example: main, printf , name,), etc.

•Tokens are broadly classified as:

–Identifiers

–Keywords

–Constants

–Variables

–Strings

–Operators

–Special character

Video to Write first program in C in Dev C++

                                      A video to write a Programme  to print Hello

You can write the program on dev c++ or turbo c which can be easily download from google search .but from my opinion dev C++ is the best one .

after the dev c++ install go to the file and then new and after that source file after this a new page is open the you can write program on that page.

I taught u how to write the program .

first very easy step

Write a program to display hello on output screen.

#include<stdio.h>       //#include is an preprocessor 

                                   //stdio.h is an library

int main()                     //int main very all the work will done on the scope

                                    //scope open

                                     //printf is defined on stdio.h library

{

 printf("Hello");        // ;(semicolon) is very important after the end of the line

return 0;                     // it will return  value

}                                   //scope closed

after writing this program u type  f11 for compiling.

History and Featuer Of C

HISTORY OF C

-In  1972 Dennis Ritchie developed the c at Bell Laboratories.

-BCPL(Basic Combined Programming Language) and B are earlier language.

-C is a language which has been closely  associated with UNIX operating system .

-In 1983 ,the American National Standards Institute (ANSI) established a committee to provide a modern ,comprehensive definition of C.

-The definition ,the ANSI standard ,or ANSIC ,was completed late 1988.

FEATURE OF C

C is the widely used language .It provide a lot of feature that are given below -

1)Machine independent/Portable

2)Mid Level Language 

3)Structured Programming  Language 

4)Rich Library

5)Memory Management 

6)Fast Speed

7)Recursion

8)Pointer

9)Extensible