Secondary storage

Secondary storage

1. Its non volatile storage. it is needed in a computer system to store your programs, operating systems and files.

   • Non volatile means that the data is not deleted when the computer is switched off.

2. optical storage

   • blu ray
   • DVD
   • CD
   • really portable and can be played on lots of devices
   • Not very durable. They Can scratch and break easily

3. solid state (flash) storage

   • solid state hard drive
   • playstation memory card
   • USB memory stick
   • excellent read/write speed
   • not good capacity compared to magnetic storage

4. magnetic storage

   • external hard drive
   • magnetic hard drive
   • high capacity
   • slower read/writ speed in comparison to solid state