secondary storage

secondary storage

1. solid state

   • advantages
     • high read and write speed
     • energy efficient
     • durable
   • disadvantages
     • expensive
   • examples
     • USB
     • phone
     • tablets
     • gaming PCs

2. magnetic

   • advantages
     • high capacity
     • cheap
   • disadvantages
     • less durable than solid state
   • examples
     • desktop computers
     • PCs
     • games consoles

3. optical

   • advantages
     • portable
     • cheap
   • disadvantages
     • low capacity
     • can be easily scratched
   • examples
     • CDs
     • DVDs
     • blue-rays

4. purpose

   • what do we use storage for?
     • storing data (files, operating system, applications) permanently