Adequately securing your computer requires a defense against hardware failure, electrical surges, and external attacks from viruses and hackers. While it's almost impossible to predict when your hardware or software will fail, you can protect against losing data by using a back-up device such as a tape drive, removable storage device, CD Writer, or CD Rewriter. As a defense against electrical surges, use either a surge protector or suppressor. A surge protector is a fuse that trips when the voltage exceeds the maximum amount allowed. A suppressor clamps down on potential surges, permitting only a certain number of volts through, allowing your computer to remain on. Look for a surge protector or suppressor that trips at 330 volts or less. There are certain steps to take to secure your computer from external threats like viruses and hackers. A good anti-virus program should be enough for most home or small-office users, but be sure to check the program manufacturer's Web site regularly for downloadable patches that protect against newer viruses as they emerge. To protect your computer from hackers, always use random passwords with no relation to personal information. If you're using an always-on Internet service, such as cable modem or DSL, make sure you have a firewall in place to protect against hacking from an outside source. For more information, consult a computer professional.
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