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Storage Device - Coggle Diagram
Storage Device
Secondary Storage
Secondary storage or "External memory" use for long term storage of data
Data storage is permanent so it's useful for storage and backup.
It have transfer data from one computer to other
Secondary storage is considerably less expensive than primary memory
Primary Storage
Primary storage or "Internal memory" and it's accessed direct by CPU
Primary storage is Volatile
Primary storage is Temporary
Primary storage faster that secondary storage
Magnetic Device
Hard Disks
Main Storage for System Unit
Internal
OS
Major Applications
External
Connect Via USB
Back Up Internal Hard Disk Contents
Protect or Secure Sensitive Information
Floppy Disk
Used to transfer data from computer
Come in 2 size
Data capacity is less
Secondary Storage Characteristics
Devices
Read or Write to or from Media
Access Speed
Time Required to Read Data and Programs
Media
Physical Material that Holds Data and Programs
Optical Device
Use lasers and light to store data
CDs
DVDs
Blu-Ray
