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What is the full form of UPS

UPS: Uninterruptible Power Supply

UPS runs on a battery which is used to supply power in the absence of primary source or when supply is cut off. A UPS can keep a computer running for some minutes giving you enough time to save all your data in order not to lose it.

Many UPSs now offer software which automatically saves your data and shut down your computer.

Battery size is also an important factor in the selection of UPS systems.

UPS full form

Types of UPS System

There are two types of UPS system:

  1. Stand-by power system : Also called offline UPS and line-interactive UPS. When power is cut off it switches to battery in few milliseconds. During this time, computer is not receiving any power. This supply is mostly used in a computer or office supply store.
  2. Online UPS : Online UPS supplies uninterrupted power from its own inverter. It has two drawbacks, first one is that it is more expensive from the stand-by UPS and other one is that it contain cooling fan which creates a lot of noise.


  • Control voltage spike
  • Reduces noise
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