Computer Science for IGCSE & O level - Hardware (Section 22 - No. 6)

What is the primary method used by a 2D scanner?
Using sound waves to create an image.
Reading a paper document and converting it to an electronic format.
Analyzing the surface of an object.
Using a laser to create a three-dimensional model.

Explanation

2D scanners read paper documents and produce an electronic form.

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