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A developer writes software that controls a robot arm. Which two components must work together for the arm to move correctly?

hard🧠 Conceptual Q9 of Q15
Intro to Computing - How Software Works
A developer writes software that controls a robot arm. Which two components must work together for the arm to move correctly?
ASoftware instructions and the robot's paint color
BRobot hardware motors and the robot's battery size
CSoftware instructions and robot hardware motors
DRobot's paint color and battery size
Step-by-Step Solution
Solution:
  1. Step 1: Identify components needed for movement

    Software provides instructions; hardware motors perform physical movement.
  2. Step 2: Match components that must cooperate

    Software and motors must work together to move the robot arm correctly.
  3. Final Answer:

    Software instructions and robot hardware motors -> Option C
  4. Quick Check:

    Movement needs software + motors = B [OK]
Quick Trick: Software commands motors to move hardware [OK]
Common Mistakes:
MISTAKES
  • Choosing paint color or battery size as key
  • Ignoring software's role in control
  • Confusing hardware parts unrelated to movement

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