1.2.2 Secondary Storage Flashcards

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1
Q

State the need for Secondary Storage.

A

To read/write data to store when the computer has no power.

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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
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3
Q

Disadvantages of Solid State Storage.

A
  • expensive per GB
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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
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5
Q

Disadvantages of Magnetic Storage.

A
  • not portable
  • data can be lost near strong magnetic fields
  • not as fast as flash memory
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6
Q

Advantages of Optical Storage.

A
  • fairly cheap
  • good for storing videos/movies
  • immune to magnetic fields
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7
Q

Disadvantages of Optical Storage.

A
  • not portable (easily scratched)
  • slow to write (burn) and read
  • cannot write over stored date
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