What does UPS stand for?

What does UPS mean?

UPS	Un-Predictable Service Miscellaneous » Funnies
UPS	Unmitigated Package Smashers Miscellaneous » Funnies
UPS	Useless Power Supply Miscellaneous » Funnies
UPS	Unbelievably Pathetically Slow Miscellaneous » Funnies
UPS	United Produce Service Business » Firms
UPS	Unilateral Phase System Academic & Science » Electronics
UPS	Uncommonly Poor Service Miscellaneous » Funnies
UPS	Use Purolator Service Miscellaneous » Funnies
UPS	Universal Port Serial Computing » Hardware
UPS	Unusual Points Situation Governmental » Military
UPS	United Pediatric Services Business » Firms
UPS	Unity Peace Serenity Community » Religion
UPS	United Pop Stars Community » Media
UPS	Universal Player System Community » Media
UPS	Ultra Perfect Service Computing » Networking
UPS	Uriahs Pony Service Business » Firms
UPS	Uninterruptible Power System Governmental » NASA
UPS	Uninterruptable Power Supply Academic & Science » Electronics
UPS	Upright Perigee Stage Governmental » NASA