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Computer (Hardware (Storage (Temperory: data that will be lost when…

- - - - RAM (Random Access Memory): data in it will be lost when the computer turns off
    - - Permanent storage hardware examples
        
        Blu-Ray disc
        
        25 gb for single layer disc and 50 gb for dual layer
        
        Optical storage: type of storage device that uses light to read and write data
        
        CD-ROM disc
        
        a cd that can only be read by a user
        
        CD-R and CD-RW disc
        
        CD R is writable but only once but CD RW can be re written many times
        
        DVD-R, DVD+R, DVD-RW, and DVD+RW disc.
        
        Same definition as the CDs but can hold more storage
        
        Floppy disk
        
        Has very low storage capacity and it is one of the oldest storage devices
        
        Magnetic storage: Uses magnets to write data
        
        Hard drive
        
        Used a lot by computers. Faster and has more capacity than floppy disks
        
        Jump drive or flash drive
        
        Memory card
        
        Memory stick
        
        SSD
- - - - White hat hacker: Authorized hackers that are hired to find backdoors of systems to help strengthen then security
      - Black hat Hacker: Hackers who hack to hard operations or steal sensitive info
      - Grey Hat hacker: Hackers that hacks into systems without authority to notify people to fix their security.
- - - - Command Line INterface
        
        Uses over 270 commands
        
        Uses little power
        
        A lot to memorize
      - Graphic User INterface
        
        Easy to use
        
        Visual interface
        
        More power required
      - Touch screen interface
        
        Mostly used in portable devices
        
        Use fingers to command
        
        Swipe, tap, rotating, pinching