Storage Devices

Storage Devices

1. Magnetic

   • Advantages
     • They are extremely cheap
     • High storage capacity
   • Disadvantages
     • They have worse portability than solid state devices as there is a higher chance of getting scratched.
     • They are slower at reading and writing than solid states
   • Examples
     • Internal hardrive
     • Portable HD

2. Solid state

   • Advantages
     • Fast at reading and writing
     • Small and easily portable
   • Disadvantages
     • They are not as cost effective as magnetic expensive
     • Low storage capacity
     • It wears out so you can only access it a limited number of times
   • Examples
     • SD Card
     • Flash Drive
     • Solid State Drive

3. Optical

   • Examples
     • DVD/CD
     • Blu-Ray
   • Advantages
     • They're quite cheap
     • They can be used in many different devices
   • Disadvantages
     • They have very low storage capacity
     • They can easily be scratched and damaged

4. Purpose

   • What do we use storage for?
     • Saving data
     • Operating systems
       • Examples
         • Windows
         • IOS
         • Android

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