secondary storage

secondary storage

1. purpose

   • what do we use storage for
     • storing data permanently

2. magnetic

   • disadvantages
     • less durable than solid state
   • adventages
     • high capacity
     • cost-effective
   • Examples
     • PC's, desktop, computers, laptops, game consoles

3. Optical

   • Examples
     • CD's, DVD's, Blue-rays
   • Advantages
     • portable
     • cheap
     • can be used with a variety
   • Disadvantages
     • low capacity
     • can be easily scratched

4. Solid state

   • Examples
     • Phones, tablets and gaming PC's, laptops
   • advantages
     • high read write speed
     • energy efficient
     • durable
   • Disadvantages
     • not as cost effective