Capabilities and characteristic of hardware and software

• Storage devices : store data using different devices, means that one don't have to waste any disk space on the computer or one can use it for backup.  
      - Hard disks
       Part of the internal structure of the computer
      - Magnetic tape
      Popular for backup storage
      - Floppy Disks
      Able to save small data
      - Optical storage
      Uses lasers to write to and read from a disk.
      There are three main types of optical disk:
          - CD-ROM
          - WORM
          - Erasable optical disk