AQA GCSE Computer Science - 3.4.4 Secondary storage

1. Secondary Storage is...

• non-volatile
• volatile
• extremely large
• portable

2. Magnetic disks have...

• Mechanical parts move over the disks surface to read and write data magnetically
• Stationery disks that are read using electric currents
• Magnetic parts that attach on the disk to help read them magnetically
• Static parts that are read using lasers

3. Solid State Data is recorded onto solid memory chips without any moving parts

• true
• false

4. What is optical storage?

• Disks that use light to read and write to them
• A method which uses electrical currents to read and write data
• Embedded storage that all computers have
• Storage that uses magnetic storage

5. What is cloud storage?

• Cloud storage refers to saving data in an off-site storage system maintained by a third party
• Storage things on your phone but being able to access them from your computer
• Storing things on the cloud which does not require a physical server
• Cloud storage refers to saving data in an on-site storage system maintained internally

6. Which of the examples aren't used as cloud storage?

• SanDisk USB Flash Drive
• iCloud
• Google Drive
• OneDrive

7. What is one disadvantage of using Magnetic disks?

• They can break easily due to the moving parts
• They are expensive compared to solid state drives
• They have limited capcaity
• They aren't compatible with some applications

8. State one advantage of using SSD over other storage methods

• Provides a High level of performance
• It's more fun
• They are very cheap
• They are sold everywhere, it is easy to find a dealer

9. What is one disadvantage of Solid State Drives?

• They are more expensive
• They have poor durability
• They have low capacities
• They have slow read and write speeds

10. What is one disadvantage of Optical storage methods?

• Very low comparative disk capacity
• They are very expensive
• They don't work for some data types
• Aren't sold commerically anymore