Google began the 21st century as a small but growing search engine. 14 years later, the California-based company has built smartphones, mapped the globe, purchased a firm that makes advanced smoke detectors, and obtained a veritable army of robots. Its sometimes tempting to still think of Google as a search engine, but the strides the company has made into a huge range of hardware markets show that Googles search history wont define its future. At yesterdays Code Conference, co-founder Sergey Brin showed off Googles prototype self-driving car.