UPS (Uninterruptible Power Supply)

A UPS (You-Pee-Ess) or Uninterruptible Power Supply is a Battery backup and surge protection for computer systems, home networking, external storage, gaming, home servers and other electronics. It protects equipment from damage by preventing electrical damage and unintended power outages though voltage regulation and by restoring power from battery backup immediately after power loss from the grid. The battery backup power is usually short lived, giving the user enough time to shut the equipment down, or allowing the device itself to automatically shut sensitive equipment down in the battery operated time interval.