1.2.2 Secondary Storage Flashcards
1
Q
State the need for Secondary Storage.
A
To read/write data to store when the computer has no power.
2
Q
Advantages of Solid State Storage.
A
- very portable (in form of SD cards & USB sticks)
- large capacity
- durable as it has no moving parts
- faster than a hard disk
- silent unlike hard disks
3
Q
Disadvantages of Solid State Storage.
A
- expensive per GB
4
Q
Advantages of Magnetic Storage.
A
- huge capacity per device
- low cost per GB
- high speed data access
- durable for up to 30 years
5
Q
Disadvantages of Magnetic Storage.
A
- not portable
- data can be lost near strong magnetic fields
- not as fast as flash memory
6
Q
Advantages of Optical Storage.
A
- fairly cheap
- good for storing videos/movies
- immune to magnetic fields
7
Q
Disadvantages of Optical Storage.
A
- not portable (easily scratched)
- slow to write (burn) and read
- cannot write over stored date