04 Optical Storage

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Optical storage

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A type of storage using lasers to write and read data

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Example of optical storage: Hard drive, USB flash drive, CD, RAM

Back

CD

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What is one advantage of optical storage?

Back

Portability

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What is a disadvantage of optical storage?

Back

Susceptibility to scratches

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How much data can a CD typically store?

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700 MB

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What is the capacity of a Blu-ray disc?

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25 GB

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Why might optical storage be considered reliable?

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It is reliable if stored properly

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What is a cost advantage of optical storage?

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Cheap to buy in bulk

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What is a portability advantage of optical storage?

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Small and lightweight

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What is a speed disadvantage of optical storage?

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Slow reading due to accessing the optical disk drive