Question

The diameter of a standard CD is?

• A. 12cm
• B. 14 cm
• C. 6 cm
• D. 10cm

Answer 1

Answer:

A. 12cm

• Optical disc

  • The main optical discs are CD, DVD and Blu-ray Disc.
  • A compact disc (CD) is a device that has a larger storage capacity than a floppy disk and a smaller storage capacity than a hard disk.
  • The storage capacity of CD is 650MB to 750MB.
  • The diameter of a standard CD is 12 cm.