Secondary Storage

Secondary Storage

1. Magnetic storage

   • External hard drive
   • Magnetic hard drive
   • High capacity (stores a lot of data)
   • Magnetic storage has a slower read/write speed in comparison to solid state storage.

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

   • Non-volatile means when the computer system has no power, the data is not deleted

3. Optical drive

   • CD
   • DVD
   • Blu Ray
   • If the CD or DVD is scratched or damaged the optical drive wont read it. It isnt very durable
   • The optical drive is portable

4. Solid state (flash) storage

   • USB memory stick
   • Solid state hard drive
   • Playstation memory card
   • Excellent read/write speed. Data is loaded and saved a lot quicker in comparison to magnetic storage
   • Not good capacity compared to magnetic storage