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. 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

3. Magnetic Storage

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

4. Solid state (flash) storage

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