How the Cloud Works
Computer Science: Edexcel IGCSE, topic 4.2.22
Data Centres
Although the end-user does not need to install any software, the content of the cloud must be stored somewhere.
Data centres
- Cloud services exist in giant data centres all around the world.
Storage
- Data centres are essentially rooms full of secondary storage devices, so that we can store our data and access it again.
- Data centres usually opt for very expensive devices because the time taken to access the data needs to be minimised.
Location
- The end-user does not know the geographical location of the data centre where their data is stored.
- There is no guarantee that the data will even be kept in the same country.
- Large websites often have at least one data centre per large country they provide services to.
Test yourself on How the Cloud Works
Toggle until all are correct: What are features of data centres?
What technology can help to recover data in a data centre?