Secondary storage

Secondary storage

1. portable

   • USB memory stick
     • small and light
     • very durable
     • uses similar technology to SSD
     • used to transfer files between computers
   • optical disk
     • slow
     • very cheap
     • portable
     • can be scratched and damaged
   • memory stick
     • very small and flat
     • used in portable devices like cameras to store photos and videos
     • same technology as USB just without the connectors

2. fixed

   • SSD
     • fast
     • no moving parts
     • low power usage
     • expensive
   • hard disk
     • stores and retrieves digital data
     • backups