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690630
Secondary Storage
Description
Computing
No tags specified
gcse
Mind Map by
izzykersley01
, updated more than 1 year ago
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Created by
izzykersley01
over 10 years ago
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Resource summary
Secondary Storage
Stores data and programs when the power is switched off
Magnetic Hard Disk
Stores the operating system, installed programs and user data
Reliable
High capacity
Low Cost
Optical Disk
Transfers files or distributing software
Good capacity
Low cost
Lightweight and portable
A CD can store 700 MB and DVD can store 4.7 GB
Flash Memory
Consumes little power
Good capacity (but less than a hard disk)
Used in hand held devices
More expensive than a hard disk
Main considerations when selecting storage
Capacity
Speed of data transfer
Portability
Durability (how easily it's damaged)
Reliability
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