How do people make video games

A video game combines all the elements of a great story -- adventure, danger, colorful and daring characters and a plot -- with enhanced computer graphics and interactivity. Video game makers do their best to put players inside the game, an attempt to give them the most intense and entertaining experience.

Step 1: Do Some Research & Conceptualize Your Game.
Step 2: Work On A Design Document.
Step 3: Decide Whether You Need Software.
Step 4: Start Programming.
Step 5: Test Your Game & Start Marketing!

The five major components is processor main memory second memory and input devices and output devices