Multiple choice

The most common input device used today is

  1. UPS

  2. Mouse

  3. Keyboard

  4. CPU
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The keyboard remains the most fundamental and widely used input device for computers, used for text entry, commands, and navigation. While mice are common, the keyboard is essential for most computing tasks and is present on virtually every computer setup. UPS is battery backup, CPU is processing, not input.

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