Storage Media Questions from Students CIE ICT IGCSE Unit 3

What is the difference between SSD and HDD

• SSD is faster than HDD when transferring data
• portable, higher capacity of storing data, very durable, faster performance
• small capacity (most CDs < 1GB capacity) & although they are fairly reliable and durable but they can be easily damaged
•   because they are read only

What is an advantage of using SSD

• allowed you to store a lot of data, very fast transfer data
• SSD is faster than HDD when transferring data
• portable, higher capacity of storing data, very durable, faster performance
• small capacity (most CDs < 1GB capacity) & although they are fairly reliable and durable but they can be easily damaged

What is optical disk

• it is a disk with bumps can be read by laser
• allowed you to store a lot of data, very fast transfer data
• SSD is faster than HDD when transferring data
• portable, higher capacity of storing data, very durable, faster performance

What is a possible use of an external solid state drive

• to make the copy of original data to in case you lose your original data.
• it is a disk with bumps can be read by laser
• allowed you to store a lot of data, very fast transfer data
• SSD is faster than HDD when transferring data

Why does blu-ray have more storage than other optical disks?

• Because it uses blue lasers which have shorter wavelengths.
• to make the copy of original data to in case you lose your original data.
• it is a disk with bumps can be read by laser
• allowed you to store a lot of data, very fast transfer data

What is the disadvantage of using magnetic storage devices?

• They can be easily affected by magnetic fields.
• Because it uses blue lasers which have shorter wavelengths.
• to make the copy of original data to in case you lose your original data.
• it is a disk with bumps can be read by laser

What can you use to judge the quality of a secondary storage device?

• Cost, durability, capacity, speed, reliability, portability
• They can be easily affected by magnetic fields.
• Because it uses blue lasers which have shorter wavelengths.
• to make the copy of original data to in case you lose your original data.

What is the typical storage capacity of a flash memory drive?

• 1GB to 32GB depending on the price paid
• Cost, durability, capacity, speed, reliability, portability
• They can be easily affected by magnetic fields.
• Because it uses blue lasers which have shorter wavelengths.

How many bytes are in a terabyte?

• 1,099,511,627,776 bytes
• 1,099,511 bytes
• 1,024 bytes
• 1,099,511,627,776,554,768,534 bytes

How do the magnetic disk save the data?

•  Magnetic storage is read-write, which makes it possible to re-use the storage capacity over and over again by deleting older data
• 1,099,511,627,776 bytes
• 1GB to 32GB depending on the price paid
• Cost, durability, capacity, speed, reliability, portability