Jan 3, 2017
Smart phones
Ask yourself: what actually makes an iPhone an iPhone? It's partly the cool design, the user interface, the attention to detail in the way the software works and the hardware feels. Underneath the charming surface of the iPhone are some critical elements that made it, and all the other smartphones, possible. All of these technologies are important components of what makes an iPhone, or any smartphone, actually work. The Fast-Fourier-Transform is a family of algorithms that have made it possible to move from a world where the telephone, the television and the gramophone worked on analogue signals, to a world where everything is digitised and can therefore be dealt with by computers such as the iPhone. Back in the year 2000, seven years before the first iPhone, the US Defence Advanced Research Projects Agency, Darpa, commissioned the Stanford Research Institute to develop a kind of proto-Siri, a virtual office assistant that might help military personnel to do their jobs.
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