1. Meet the iPod touch

In the early summer of 2007, Apple released a little something called the iPhone. Maybe you’ve heard of it. With the iPhone came the promise of an iPod that could be controlled not by a wheel or series of buttons, but the touch of a finger. A few months later, the iPod touch delivered on that promise. A year after that, an updated second-generation (2G) touch provided a volume switch and an internal speaker. Fast-forward one more year, and a third-generation (3G) iPod touch appeared, similar to the 2G iPod touch but with a faster processor and graphics chip. Advance another year to the fall of 2010, and Apple produced an iPod touch closer to an iPhone than ever before. This fourth-generation (4G) iPod touch comes complete ...

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