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Computer Science (Exploitation of Computers (Phishing (Pretending to be…

- - - - Pixels
      - Bitmap is more common
      - Usually with cameras
      - Each pixel is a different colour
      - When you zoom in
      - It becomes unclear
      - This relates to binary
      - is because it is saved
        
        by binary digits
      - Each pixel is
      - represented by a binary
        
        number
      - Jpeg
      - Gif
      - Bmp
      - Png
      - Bitmaps are ordered in an invisible grid which shows what colours need to go where
    - - Vectors aren't made out of pixels they are made of shapes
      - They draw each shape mathematically
      - is if you zoom into a vector it will me smooth
      - Vectors are used for cartoons or logos
      - Usually blocks of colours
      - They don't look realistic and
      - Svg
      - Eps
      - Pdf
      - Ai
- - - - Disadvantages
      - Slower
      - Easy to interrupt
      - Can go down
      - Easier to Hack
  - - - Encryption changes the information into different symbols if the network gets hacked. The only way the information can be rea is if the password is entered.
    - - A password allows the user to enter a specific code to let them though. If the user enter the wrong password the computer will not grant the user access.
    - - Antivirus softwares scan the computer for any suspicious programs of files to then get put into quarantine. This protects a network from malware and similar things.
    - - Antivirus softwares scan the computer for any suspicious programs of files to then get put into quarantine. This protects a network from malware and similar things.
    - - Mac address filtering stops people from doing things that they shouldn't. For example some users should not be able to access some files.
- - - - Memory Address Register
        Holds the memory location of data that needs to be accessed
    - - Memory Data Register
        Holds data that is being transferred to or from memory
    - - Where intermediate arithmetic and logic results are stored
    - - Contains the address of the next instruction to be executed
    - - Contains the current instruction during processing
    - - Carries data around the computer
    - - Carries address information from the processor to the main memory