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| Italian | English |
| Ultra-mobile PC | ultra-mobile PC (A class of mobile PCs that has a touch screen no larger than 7 inches and a tablet pen) |
| Ultra-Wideband | ultra-wideband (A wireless technology similar to radar that is centered on the 200MZ to 4GHz band) |
| Ultra-Wideband | ultra wide-band (A wireless technology similar to radar that is centered on the 200MZ to 4GHz band) |