HOW DO OPTICAL DRIVES READ INFORMATION?

Optical drives read information by using a laser beam to illuminate the surface of an optical disc, such as a CD, DVD, or Blu-ray. The disc is encoded with data in the form of pits and lands, which represent binary information. As the disc spins, the laser detects changes in reflection caused by these pits and lands, converting them into electrical signals that are processed to retrieve the stored information. The drive's optics and sensors work together to ensure accurate reading, even if the disc is slightly scratched or dirty.