Discussion
The most common Input device used to enter alphanumeric data is
Answer: B
Correct answer: Keyboard
Alphanumeric means letters and digits, and the keyboard remains the standard device for entering them - a key per character, with modifiers extending the set.
The mouse is a pointing device and enters position rather than characters. A monitor is an output device, and a hard disk is storage. Speech recognition and handwriting input exist as alternatives, but neither has displaced the keyboard for text entry.
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