Secondary Storage

izzykersley01
Mind Map by izzykersley01, updated more than 1 year ago
izzykersley01
Created by izzykersley01 almost 6 years ago
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Description

Computing
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Resource summary

Secondary Storage
1 Stores data and programs when the power is switched off
2 Magnetic Hard Disk
2.1 Stores the operating system, installed programs and user data
2.2 Reliable
2.3 High capacity
2.4 Low Cost
3 Optical Disk
3.1 Transfers files or distributing software
3.2 Good capacity
3.3 Low cost
3.4 Lightweight and portable
3.5 A CD can store 700 MB and DVD can store 4.7 GB
4 Flash Memory
4.1 Consumes little power
4.2 Good capacity (but less than a hard disk)
4.3 Used in hand held devices
4.4 More expensive than a hard disk
5 Main considerations when selecting storage
5.1 Capacity
5.2 Speed of data transfer
5.3 Portability
5.4 Durability (how easily it's damaged)
5.5 Reliability
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