It is well known that the kids question a lot how the things are shaped and interact with each other. I strongly believe the saying of Albert Einstein: The important thing is not to stop questioning. Curiosity has its own reason for existing.
Getting engineering courses can be seen like learning how to drive; you can study the highway code (or learn the theory) for years, but nothing can prepare you for the real thing, which is getting behind the wheel and hitting the open road.
Stepper motors are the motors that operate with very precise signals. They change the angular position step by step with the pulse signals applied to the motor input. The stepper motors, which convert digital inputs into analog rotational motion, are also known as "digital machines"