back up techniques-needs to be done regularly(kc does it 3 times a day)AND ON A schedule.
virus protection facility-firewall blocks anything that is unauthorized or not requested by you.does this by monitoring traffic.
frequency of saving-power cuts can stop you keeping your memory on computer because you have not saved it or do not save frequently. short term power cuts still allow the system to keep running for at most around a week.
surge protector-strikes in voltage or sudden boost of power
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