Purpose of Secondary Storage
Permanent storage when device is turned off or Transferring to another device.
Types of - Secondary Storage
Magnetic
Solid State
Optical
Magnetic Storage
Capacity - High Speed - Medium Durability - Low Reliability -Yes Portability - Low Cost - Medium
Solid State
Capacity - Medium Speed - Fast Durability - Very Reliability - Yes Portability - High Cost - High
Optical
Capacity - Low Speed - Slow Durability - Low Reliability - No Portability - High Cost - Low
Capacity
Amount of data stored
Speed
Read /write access to data
Portability
Easy to move around.
Durability
Resistant to damage
Reliability
Shelf Life of the media
Cost
Expense in cost per Gb