What data storage technology uses light to read and write information?

Optical Disk

Optical disks, like CDs, DVDs, and Blu-rays, marked a significant evolution in data storage and sharing. Invented in the 1980s, these disks use a laser beam to read and record information, offering a much greater capacity than traditional magnetic media of the time. Their ability to store large amounts of data, including audio, video, and software, in a portable and durable format, revolutionized the entertainment and computing industries. Moreover, the introduction of optical disks facilitated the distribution of multimedia content, enabling widespread dissemination of information and culture.