Secondary Storage

Secondary Storage

1. 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
   • You would use magnetic storage in a PC if you wanted a higher capacity for files.
   • Cost effective if you need lots of storage space

2. Solid state (flash) storage

   • Solid state hard drive
   • USB memory stick
   • Playstation memory card
   • Excellent read/write speed
   • Not good capacity compared to magnetic storage
   • You would use solid state in a PC if you wanted it to have a faster read/write speed
   • More durable than magnetic storage
   • Cost effective if you need a high performance PC

3. Optical storage

   • CD
   • DVD
   • Blu Ray
   • Really portable and can be played on multiple devices
   • Not very durable.They can scratch and break easily
   • Better portability than magnetic and solid state storage
   • You would use optical storage if you were distributing multiple copies of a file

4. 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