Storage Devices

Storage Devices

1. optical

   • examples
     • DVDs, CDs, Blue-Rays
   • disadvantages
     • can be easily damaged
     • lower capacity than magnetic
   • advantages
     • more portable than
     • can be used in a variety of devices
     • cheaper than solid state

2. solid state

   • advantages
     • higher read write speed than
     • more durable than optical
     • more energy efficient than
   • examples
     • phones, tablets,PC, laptop
   • disadvantages
     • not as cost effective as magnetic

3. what is the purpose ?

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

4. magnetic

   • advantages
     • more cost effective then solid state
     • higher capacity than optical
   • disadvantages
     • less durable than solid state
   • examples
     • PCs, desktops, computes' laptop