The computer is in a constant
cycle of input, process,
and output. The computer waits for
you to enter the required information (input). Based on the entered information,
the computer takes the appropriate actions (process). Finally, the result is
displayed on the screen or printed out (output).
An analogy for input, process and output would be a food processor where
food, fruit and other ingredients are put into the machine. Afterward, based on
the selected setting, such as cutting, chopping, or mixing, the food processor
performs the appropriate task, and finally the desired mixture is ready to be
used.
THE MAIN SKELETON OF THE C AND C++ PROGRAM
A C/C++ program has a main skeleton, regardless of how large or small it is. Every program starts with the word main, followed by an open parenthesis and closed parenthesis. The beginning of the program is marked with an open brace, and the end of the program is marked with a closed brace. Let me show you the simplest program one can create in both C and C++.