Uninterrupted Power Supply System for Interactive Computer can accept any input waves if voltage and frequency is within limit. The Uninterrupted Power Supply System is most suitable for online interactive computer. The System is provided with universal card of any voltage from DC 12v to 48v as well as power from 500va to 3 KVA including power and charger sections. Uninterrupted Power Supply System for Interactive Computer is designed using micro chip based technology.