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