Secondary storage

Secondary storage

1. Solid state (flash) storage

   • No spinning disks
   • No moving laser beams
   • More durable and can read and write data much faster than magnetic storage. It is also more energy efficient.
   • Less cost effective in comparison to magnetic because it has a much smaller capacity. It also has a limited read/write lifespan.

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 that the data is not deleted when the computer system has no power connected to it.

3. Magnetic storage

   • Cost effective due to having a larger capacity than solid state.
   • Not as durable due to moving parts and reads/writes data slower in comparison to solid state.
   • Floppy disks
   • Hard-disk drives

4. Optical storage

   • Cost effective and very portable
   • Not very durable and has a limited capacity