The GUI or Graphical <u /><u></u><em />User Interface.
Answer:
Viruses
Explanation:
virusues are designed to infect and cause damage to operating system files, computer registry, and other locations on the motherboard
Help each other because if the other sister is older she should have more experience and knowledge
Paste special allows the item being transferred to be formatted in several different ways. Paste is just going to be transferred the exact way you copied it.