Flashcards
1.3 component 1
Cards in this deck (17)
- 1what is the need for secondary storageit is read-or-write and is non-volatile
can be used for the long term storage of temporary data - 2primary storageROM, RAM, cache and registers
- 3what is held in the secondary data and why?opperatings systems, programs and data when they are not in use
- 4what does tertiary storage refer tothe backups and archives os large amounts of data
- 5howis data stored in a magnetic storageusing magnetism
- 6how is data stored in a solid state storageusing semiconductor chips
- 7how is data stored on a optical storage?using pits and lands
- 8what are the six factors that affect how good a storage device is?cost
speed
portability
durability
reliability
capacity - 9what is cloud storageCloud storage is a service model in which data is maintained, managed, backed up remotely and made available to users over a network
- 10advantages of cloud storage- unlimited space
- access on any device with internet connection
- fast to open the data
- cant overuse the data
- sharing files is quick and easy - 11disadvantages of cloud storage- you cant access it without the internet
- privacy issues
- costs a lot - 12advantages of optical storage- cheap
- large storage capacity
- can be re-used
- portable - 13disadvantages of optical storage- easily damaged
- need a disk reader - 14advantages of magnetic storage- large capacity
- cheap - 15disadvantages of magnetic storage- easily damaged therefore not durable or reliable
- loud
- slow data access - 16advantages of solid state drives- portable
- dont damage easily since there are no moving parts
- lightweight
- dont require as much power to opperate as hard-drives
- noiseless - 17disadvantage of solid state drives- expensive
- data extraction can be hard and long
- memory chips in them have a limited number of write cycles leading to unrecoverable data loss
- you can lose it easily
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- A level Computing Flashcards on 1.3 component 1 , created by Olivia Szydlo on 26/09/2019.
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- Olivia Szydlo
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