Secondary Storage

Secondary Storage

1. 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 not deleted when the computer system has no power connected to it

2. Solid state (flash) storage

   • Solid state hard drive
   • USB memory stick
   • Playstation memory card
   • Excellent read/write speed. (It loads and saves data quickly)
   • Not good capacity compared to magnetic storage

3. Magnetic storage

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

4. Optical storage

   • CD
   • DVD
   • Blu Ray
   • Really portable and can be played on lots of devices
   • Not very durable. They can scratch and break easily.

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