difference between ups and inverter

I want to know the exact difference between UPS and inverter in performance wise.

What are you talking about?

An inverter is an electrical or electro-mechanical device that converts direct current (DC) to alternating current (AC); the resulting AC can be at any required voltage with the use of a transformer. Inverters are used in a wide range of applications, from small switching power supplies in computers, to large electric utility applications that transport bulk power. Not to be confused with a logical inverter, the electrical inverter is in effect a high-power electronic oscillator. It is so named because early mechanical AC to DC converters were made to work in reverse, and thus were "inverted", to convert DC to AC. The inverter performs the opposite function of a rectifier.

Short for uninterruptible power supply, a power supply that includes a battery to maintain power in the event of a power outage. Typically, a UPS keeps a computer running for several minutes after a power outage, enabling you to save data that is in RAM and shut down the computer gracefully. Many UPSs now offer a software component that enables you to automate backup and shut down procedures in case there's a power failure while you're away from the computer.

Yay Kris. I was thinking the delivery company for UPS