ACPU
Bmouse
Cmemory
DUPS
Answer:
D. UPS
Read Explanation:
A UPS (Uninterruptible Power Supply) is a device that provides uninterrupted power to computers, servers, and other electronic devices during a power outage.
A UPS can quickly switch to battery backup in the event of a power outage, giving the equipment enough time to operate and safely shut down.
There are three main types of UPSs:
Offline/Standby UPS:
This is the most commonly used and least expensive UPS.
It switches to battery backup only when there is a power outage.
It is suitable for general-purpose applications such as computers.
Line-Interactive UPS:
This is an improvement over offline UPS.
It has a system for controlling voltage fluctuations.
It corrects small voltage fluctuations without switching to an inverter.
Online UPS:
This is the best and most expensive UPS.
In this, the devices always receive power from the inverter.
The incoming AC current only charges the battery.
Therefore, the devices will continue to operate without any change in the event of a power outage.
It is used for servers and important data centers.