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2.5.5 Storage (Characteristics (non-volatile; it does not lose its …

- - - - contains one or more
        inflexible, circular platters that use magnetic
        particles to store data, instructions and
        information.
      - stores operating system, application
        software, users’ data and information, and
        backup
      - Characteristics
        
        Capable to store large amount of data
        
        Direct access device; a file can be access
        randomly, not following the sequence it is stored
        
        Faster data access compared to tape.
    - - Magnetically coated ribbon of plastic capable
        of storing large amount of data.
      - mainly used for storing backup data.
      - Characteristics
        
        Capable to store large amount of data.
        
        Sequential access device; a file have to be
        accessed in sequence.
        
        Slower data access compared to hard disk
- - - - Flash memory storage that users plug in a USB port on
        computers or mobile devices.
    - - users insert and remove
        from a slot in personal computer, smartphone, digital
        camera, or card reader/writer.
      - CompactFlash, microSD, Memory Stick Micro
    - - offers faster data transfer
        rate, used in all types of computers and mobile devices.
      - replace storage media with moving
        parts such as hard disk and optical disc.
- - - - used to store data,
        songs, drivers, and program files
      - – CD-ROM
        – CD-R
        – CD-RW
    - - to store videos,
        films, and large programs
      - Higher storage capacity and better image
        quality compared to CD
      - DVD-ROM, DVD-R, and DVD-RW
    - - to store highdefinition
        and ultra high-definition videos and
        movies.
      - uses a blue laser instead of a red laser to
        read and write data on the disc.