ITPEC FE Morning April 2022 Question 20
Source exam: ITPEC FE Morning April 2022Topic: Computer Systems & Hardware
ITPEC FE Morning April 2022 — Question 20 of 80
Actuator — converts an electrical control signal from a computer into mechanical motion.
- •Actuator = electrical signal → physical motion (e.g., motors, servos)
- •Sensor = physical quantity → electrical signal (opposite of actuator)
Why not others:
- (a) — describes an A/D converter (analog-to-digital)
- (c) — describes a sensor
- (d) — describes an input device (keyboard, touch panel)
Key rule: Actuator and sensor are opposites — actuator acts on the environment, sensor reads from it.
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