Question

__ read the data by reflecting pulses of laser beams on the surface ?
A. Magnetic disk
B. Optical disk
C. Floppy disk
D. ROM

Answer 1

Answer:

Option b which is optical disk.  

It is because optical disk read the data by reflecting pulses of laser beams on the surface.

This kind of storage refers to the way of storing the data by using light.  

When it comes to optical disk, it is a common method of this storage.

It provides the data density higher than the magnetic methods.

Answer 2

The answer is Option B.

Option disk reads the data by reflecting the pulses of laser beams on the surface.

An optical disk is a circular flat disc with aluminum on one of its flat surfaces. It supports three recording formats – read-only, recordable and re-recordable. They are mainly used to store music, videos and/or programs and data. These discs have a diameter of 3 to 12 inches and a thickness of 1.2 mm.