Question

which of the following are optical storage devices? (select three.) cd usb flash drive dvd blu - ray disc

Explanation:

Optical storage devices use laser - light to read and write data. CDs, DVDs, and Blu - ray discs are optical storage as they have data encoded on their surfaces which is read by a laser. USB flash drives use flash memory and are not optical storage.

Answer:

A. CD
B. DVD
C. Blu - ray disc