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A security system is meant to scare off burglars and thieves, whether in a residence or a business. The alarm usually produces a shrill sound when an intruder has entered, alerting the occupants. Sometimes the alarm notifies the alarm company, which in turn notifies the authorities. Security systems companies can install alarms in homes or businesses to help deter burglars from entering. Some companies can also monitor situations from their home base, alerting authorities in the event of an intrusion or the fire department in the event of a fire. Alarm systems can include motion detectors, card or keypad access, video camera surveillance, and monitoring sensors and devices. File system security and security-oriented operating systems are another component of security systems. You can find burglar alarms systems and monitoring companies in your local yellow pages or by searching online directories.
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