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Which of the following combinations is incorrectly classified?

medium Q15 of 15
Computer Aptitude - Computer Hardware
Which of the following combinations is incorrectly classified?
AMouse – Input device
BSpeaker – Output device
CHard Disk – Storage device
DRAM – Output device
Step-by-Step Solution
  1. Step 1: Review correct classifications

    Mouse is input, Speaker is output, and Hard Disk is storage.
  2. Step 2: Check the incorrect pair

    RAM is primary memory, not an output device.
  3. Final Answer:

    RAM – Output device → Option D
  4. Quick Check:

    RAM stores data temporarily, it does not display output ❌ → Correct choice ✅
Quick Trick: Memory devices are not output devices.
Common Mistakes:
  • Mixing up memory and output device roles.
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