CS Edexcel 3.1c Storage and Embedded Systems

What is the main disadvantage of RAM compared to ROM?

• RAM is non-volatile

• RAM cannot store data without power

• RAM is more expensive than ROM

• RAM is slower than ROM

Which type of storage uses patterns of magnetisation to store data?

• Optical storage

• Solid state storage

• Magnetic storage

• Cloud storage

What happens when a magnetic storage device comes into contact with strong magnets?

• It increases storage capacity

• It speeds up data retrieval

• It can lead to data corruption

• It becomes non-volatile

How does optical storage read data?

• By using electrical signals

• By using patterns of magnetisation

• By reflecting a laser beam

• By using magnetic fields

What method of storing data is solid state?

• Using magnetic fields

• Forcing electrons through a barrier

• Storing data on a spinning disk

• Using laser beams to etch data

What is one of the main benefits of cloud storage?

• Requires no internet connection

• Data is automatically backed up in multiple locations

• Data is stored on physical devices only

• No risk of data breaches

What is a drawback of cloud storage?

• High cost of physical devices

• Limited storage capacity

• Sensitive data may be stored in another country

• Slow data retrieval speeds

Which of the following is a characteristic of magnetic storage performance?

• High portability

• Low cost

• Unlimited durability

• Instant data access

What is the typical capacity of a CD-ROM?

• 4.37GB

• 650MB

• 1GB

• 64GB

Which type of storage is described as having "super fast" read/write speeds?

• CD-ROM

• DVD-ROM

• Solid State Drive

• Blu-Ray