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Secondary Storage Devices

Computers use primary memory such as random access memory (RAM) and cache to hold data that is being processed. However, this type of memory is volatile, which means it loses its contents when the computer is switched off. General purpose computers, such as personal computers and tablets, need to be able to store programs and data for later use.

Examples of secondary storage

  • Hard drive.
  • Solid-state drive.
  • USB thumb drive.
  • SD card.
  • CD.
  • DVD.
  • Floppy diskette.
  • Tape drive.

Presentation on Storage

Additional Reading