Lightning falls on the surface of the Earth about 100 times per second. It is estimated that in every moment, 2,000 thunderstorms lash somewhere on the planet. And annual losses, amounted to millions around the world. Lightning can send thousands of volts, coming to your computer through the power or phone line cable. Educate yourself even more with thoughts from Sony. It is not common that Lightning fall directly to a House, but it falls close.
Therefore, the modem or any other component of the computer tend to be victims. Sometimes the damage is not perceived immediately, but they gradually begin to notice the effects. Surge protector. A surge suppressor detects high voltage level and the short immediately so not to cause damage. The surge protector should not be confused with boxes porta normal streams that contain the basics to protect themselves from the high level of current, but offer no protection against lightning. Some made for computers surge suppressors include connections for telephone lines and so take care of your modem.
Stabilizers. You can also protect your computer using a good surge protector that should offer the following features: internal protection against lightning. Some do not. Telephone line protection. If you have cable modem, buy one that fits to your television and Internet cable. UPS: Continuous power supply. When lightning falls and the power is cut (even for a few seconds), you can lose valuable information from your computer. So if you manage a business, or if you are using important information, may want to invest in a UPS (Uninterruptible Power Supply power supply continuous). This unit gives you the same protection as a stabilizer and they have a battery that lets you save the information when the power goes out unexpectedly. If you buy a UPS, look for the same qualities as a stabilizer, but also keep in mind the battery life and software. In conclusion I must tell them that all these protective devices have their limits and introducing a thunderstorm not ensures protection 100%, why would be better to take the extra caution unplug the computer and disconnect the phone cord when not in use.