secondary storage

secondary storage

1. optical

   • dvd's
   • CD's
   • limited amount of capacity
   • very portable
   • cost effective
   • not very durable
   • advantages
   • disadvantages

2. solid state

   • SD card
   • USB drive
   • read write speed is fastest
   • durable
   • small capacity
   • less cost effective
   • advantages
   • disadvantages

3. magnetic storage

   • hard disk
   • floppy disk
   • cost effective
   • larger capacity than solid state
   • not very durable
   • read/write speed is quite slow
   • advantages
   • disadvantages

4. it is non-volatile storage. it is needed in a computer system to store your programs, operating system and files

   • non volatile means that the data is deleted when the computer itself has no power runnign through