Computer Science for IGCSE & O level - Hardware (Section 16 - No. 49)
How do 2D scanners create images?
By projecting a laser beam onto a 3D object.
By converting a document into an electronic form.
By taking images of points along three axes.
By using sound waves to create a 3D model.
Giải thích
2D scanners create a digital image from a hard copy document.