Which of the following use laser beam technology? Select only one: A. LCD B. Flash memory C. DVD D. HDD

Understand the Problem

The question is asking which of the listed items use laser beam technology. The options provided are LCD, Flash memory, DVD, and HDD, and you need to select the correct one.

More Information

DVDs use optical technology, where a laser beam reads and writes data on the disc. This method distinguishes them from other storage types like flash memory and hard disk drives which do not use lasers.

Tips

A common mistake is confusing other types of storage technologies like flash memory with optical storage. Remember that optical storage specifically involves lasers.

Sources

• What are optical disks and how do they work? - TechTarget - techtarget.com
• Types of Storage Devices - Experience Dropbox - experience.dropbox.com
• [Solved] Which of the following are optical storage devices Select three - studocu.com