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secondary storage - Coggle Diagram
secondary storage
magnetic
advantage
huge capacity
fast access and retrieval times compared to storage devices
not very portable
disadvantage
it has moving part which will wear out over time
cheap per gb
magnetic tape
magnetic disc
solid state
advantage
disadvantage
very expensive
no moving parts
large capacity
expensive compared to hard disk
less durable than a hard disk
100000 cycles before it wears out
very portable when in the form of sd cars and usb memory sticks
sd card and usb pen drive
solid state hard drive in small devices such as ipads and phones
optical
disadvantage
easily damaged with scratches
advantage
less storage capacity compared to other
immune to magnetic field
portable storage medium that takes up little physical space
cheap if less than 10gb