secondary storage

secondary storage

1. optical

   • disadvantages
     • not very durable
     • has a limited captivity
   • advantages
     • cost effective
     • very portable
   • exaples:
     • CDs,DVDs and Blue-Rays

2. magnetic

   • advantages
     • cost affective due to having a larger capacity than solid state
   • disadvantages
     • not as durable due to moving parts
     • reads/writes data slower in comparison to solid state
   • examples:
     • PCS, desktop computers, laptops, games consoles

3. solid state

   • disadvantages
     • less cost effective in comparison to effective because it has a much smaller capacity
     • has a limited read/write lifespan
   • advantages
     • more durable and can read and write data faster then magnetic storage
     • it has more energy efficient
   • examples:
     • phones, tablets and gaming PCs/laptops

4. purpose:

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