Q-1 What are Header files in C language?
Q-2 What is #include directive? Explain.
Q-3 How we can add comments in a C program?
Q-4 What is void datatype?
Q-5 What is a main() function in C program?
Q-6 What is the use of clrscr() function?
Q-7 What is the use of getch() function?
Q-8 What is the use of printf() function?
Q-9 Why we use scanf() function in a C program?
Q-10 Write a program to add two numbers using scanf() function?