Applications of stepper motors: In which types of equipment are stepper motors commonly used due to their ability to provide precise angular movements in response to digital pulses?

Introduction / Context:
Stepper motors are electromechanical devices that move in discrete steps, making them highly useful in systems requiring position control without feedback. Their digital nature matches well with microprocessor and computer control.

Given Data / Assumptions:

• Stepper motor rotates by a fixed step angle for each input pulse.
• Suitable for low-to-medium power control applications.

Concept / Approach:

Since each input pulse produces a predictable angular displacement, devices that require controlled positioning and incremental motion rely on stepper motors.

Step-by-Step Solution:

Verification / Alternative check:

Industrial documentation of CNC machines and printers lists stepper motors in their drive systems, verifying the applications.

Why Other Options Are Wrong:

• Each individual option is correct but incomplete.
• Only “all of the above” captures the complete scope.

Common Pitfalls:

• Confusing steppers with servo motors; servos use feedback, while steppers are open-loop.

Final Answer:

All of the above.