Computer Science for IGCSE & O level - Hardware (Section 13 - No. 6)
What is the main difference between a CD and a DVD?
CDs use a blue laser, while DVDs use a red laser.
DVDs have a larger storage capacity.
CDs have a higher storage capacity.
There is no difference; they are the same technology.
Giải thích
DVDs have a significantly larger storage capacity than CDs.