Computer Science for IGCSE & O level - Hardware (Section 13 - No. 7)
Which of the following is a characteristic of Blu-ray discs compared to DVDs?
Blu-ray discs have a smaller storage capacity.
Blu-ray uses a red laser, while DVDs use a blue laser.
Blu-ray discs typically use a thinner laser beam, allowing for more data storage.
Blu-ray discs cannot store high definition videos.
คำอธิบาย
Blu-ray uses a shorter wavelength laser beam and, due to this, can store more data on a disc than DVDs.