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The top five words that are among the most commonly used passwords are 123456, password, 12345678, lifehack, and qwerty. It is too easy for hackers to get into accounts and send viruses. It is easy to remember and does not require too much thought to crack the code and figure out the password. The passwords are too weak and not a random jumble of letters. For more information please go to http://blogs.wsj.com/digits/2010/12/13/the-top-50-gawker-media-passwords/

Email messages with the subject lines " Sending You All My Love" "Laughing Kitty, " and " You've Received a Postcard from a Family Member" are inviting. You open them because it is from someone you know or it looked interesting and then it turns out to be a virus. A way to protect your computer from viruses to have antivirus software and update it when it needs to be. Please go to http://computer.howstuffworks.com/virus4.htm for more information.

T'ai Chi, yoga, and the Alexander technique might offer some relief to computer users suffering from repetitive strain injury. Repetitive strain injury affects muscles, tendons and nerves in the hands, upper back and arms. It can happen because of staying in one place too long without getting up to stretch and take a break from the computer screen. For more information about repetitive strain injury go to http://www.lumrix.net/health/Repetitive_strain_injury.html.

The purpose of a gas discharge arrestor is to divert the extra current from the hot line to the ground line. If the current goes above an accepted level, the heat caused by a resistance cuts off the current. When there is high voltage, the arrestor finds it and stores it  letting it go slowly. For more information on surge protectors and gas discharge arrestors go to http://electronics.howstuffworks.com/surge-protector2.htm.

Half of the computers in the business world have antivirus software that has been disabled or was never installed properly. Viruses and worms take advantage of any openings in software and will be even more damaging if not detected early. Virus can wipe out everything on a computer making it impossible to recover anything lost in the viral attack. For more information go to http://www.dailytech.com/New+Rampant+Windows+Worm+Seizes+8+Million+Business+PCs+in+a+Week/article13981.htm.