Syntax of C language |

   

Stdio

1.It stands for standard input output.

2.It is a collection of predefined functions/methods.

3.It is also called library of c.

include

To include the header file into the program.

#

1.It is called preprocessor.

2.It includes the library of c into the program before the execution of program.

conio

1.It stands for console input output.

2.It is used to show the output on console window.

void

1.It is a keyword.

2.It indicates that no one value is being returned by the function.

3.If we use any other keyword like int,float,char etc in place of void then we will use return keyword.

main

1.It is the function which is called the entry point of any program.

2.The execution of any prgram starts from the main function.

3.If in a program there is only one function then it should be main function.

clrscr

1.It stands for clear screen.

2.It is a predefined function which is used to clear the output screen.

3.It acts like a duster on output screen.

4.It is defined in the conio.h header file.

printf

1.It is a predefined function which is use used to print information or data on to the output screen.

2.It is defined in the stdio.h header file

getch

1.It is a predefined function which is used to hold the output screen.

2.It acts like a duster on output screen.

3.It is defined in the conio.h header file.