UPS is for the computer and other equipment after the power outage to provide continuous power supply. To ensure that computer equipment, etc. from power failure. The power supply time is determined by the UPS battery.
UPS is an uninterruptible power system (English), is able to provide a sustained, stable, uninterrupted power supply of important external equipment. UPS according to the working principle is divided into backup, online and online interactive three categories. UPS is the name suggests, it is one such machine, it stops the supply of electricity in the time, to maintain a power supply time, so that people have time to save, and then calmly shut down the machine.