storage devices...

storage devices...

1. purpose

   • what do we use storage for?
     • storage data (files

2. purpose

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

3. solid state

   • purpose
     • high read write speed
     • energy afficeint
       • durable
     • disadvantages
       • not at cost affective

4. optical

   • examples
     • disadvantages
       • can be easily scratched
       • low capacity
       • very easy to bend and break
     • advantages
       • portable
       • can be used in a variety of cheap devices
     • CD's, DVD's and blu-rays
     • uses laser to read
     • optical storage

5. magnetic