Service mark symbol. The service mark symbol (â ), the letters SM in superscript style) is a symbol used in the United States to provide notice that the preceding mark is a service mark.
Size matters: The micro and mini USB connectors are of similar width. But the micro connector is much thinner (smaller vertical dimension). Some product designs were not able to accommodate the height of the mini receptacle and the new thinner receptacle will encourage and allow thinner products.
iPod nano is smaller than iPod mini and has a color screen and a Click Wheel but has flash memory instead of a hard drive. You sync music and photos with a USB 2 cableânot FireWire. The capacity of the iPod nano is engraved on the back of the case.