1.3.8

Examples of Optical Storage

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Examples of Optical Storage

There are three main types of optical storage in use today, although their use is declining:

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Compact Disk (CD)

  • CDs are the original optical media standard.
  • A single CD can store around 700 MB of data.
  • CDs are very cheap to produce.
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Digital Versatile Disk (DVD)

  • DVDs are often used to store games or standard-definition movies for home viewing.
  • A single DVD can store around 4.7 GB of data.
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Blu-Ray Disks (BD)

  • Blu-Ray disks are often used to store high definition movies or games.
  • A single Blu-Ray disk can store around 25 GB of data.

Jump to other topics

1Components of a Computer

2Software & Software Development

3Exchanging Data

4Data Types, Data Structures & Algorithms

5Legal, Moral, Cultural & Ethical Issues

6Elements of Computational Thinking

6.1Thinking Abstractly

6.2Thinking Ahead

6.3Thinking Procedurally

6.4Thinking Logically

6.5Thinking Concurrently

7Problem Solving & Programming

8Algorithms

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