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1.3 Characteristics of Storage Devices (Characteristics (Portabiliity,…
1.3 Characteristics of Storage Devices
Magnetic Storage
Advantages
Largest capacity and fast to read
Cheapest per megabyte
Disadvantages
Not very portable or durable
Can corrupt/fail
Applications
Capacity - 500+ GB
Store OS, applications and files
Main storage for a typical computer
Optical Storage
advantages
very portable and more durable than magnetic
applications
software, movies, video games
capacity- CD:700MB, DVD:4.7GB
disadvantages
Slow to read/write
Small capacity - although dual layer and both sides can help
Easily scratched - can corrupt/fail
Solid State Storage
advantages
fastest read/write
low power consumption and noise levels
best portability and durability (not affected by magnets, physical shock)
disadvantages
capacity is smaller than magnetic ( likely to change soon)
most expensive type of storage per megabyte
applications
same as magnetic
Characteristics
Portabiliity
Durability
Speed
Reliability
Capacity
Cost