Optic Drives

• How do Optical Drives work?

  Indentations are made on a disk and a laser is shone on it, and whether it reflects (lands) or not (pits) determines the binary value each indent represents.
• What are examples of Optical Drives?

  CD, DVD, Blu-Ray
• What are the advantages of Optical Drives?

  Portable, not easily damaged, cheap
• What is a disadvantage of Optical Drives?

  Low capacity