Multiple choice technology

Which of these storage devices can store a larger amount of data?

  1. CD

  2. DVD

  3. Blu-Ray Disc

  4. VD

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Blu-Ray discs have the highest storage capacity among optical discs - a standard single-layer Blu-Ray holds 25GB compared to 4.7GB for DVD and 700MB for CD. Blu-Ray uses blue-violet laser with shorter wavelength for higher data density.