COMPUTER HARDWARE
STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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store data magnetically
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store data on their surface
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storage media with no moving parts, based on electronic circuits and using flash memory
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there aren’t right answers
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Detailed explanation-1: -Optical storage is any storage type in which data is written and read with a laser. Typically, data is written to optical media such as compact discs (CDs) and digital versatile discs (DVDs).
Detailed explanation-2: -Optical disks rely on a red or blue laser to record and read data. Most of today’s optical disks are flat, circular and 12 centimeters in diameter. Data is stored on the disk in the form of microscopic data pits and lands. The pits are etched into a reflective layer of recording material.
Detailed explanation-3: -Six categories of optical media are available to meet most storage requirements: CD-ROM, DVD-ROM, DVD-RAM, recordable media, write-once read-many (WORM) optical cartridges, and erasable optical cartridges. CD-ROM is a read-only format that is optimized for read performance.