Use laser technology to store data in the form of tiny pits or buns on the reflective surface of a spinning polycarbonate disc. To access the data, a laser illuminates the data path while a read head interprets the reflection; samples include CDs, DVDs, and Blu-ray

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1. Use laser technology to store data in the form of tiny pits or buns on the reflective surface of a spinning polycarbonate disc. To access the data, a laser illuminates the data path while a read head interprets the reflection; samples include CDs, DVDs, and Blu-ray