We’re not sure that many people expected great things to come from Amazon’s Echo speaker when it was announced back in late 2014. After all, a voice-activated speaker seemed like a superfluous gadget in our increasingly crowded digital lives. However, Echo, which is powered by the Alexa engine, has become one of Amazon’s most popular hardware

Source: Hot Hardware – Amazon’s Powerful Alexa Artificial Intelligence Engine Has Learned 1000 Skills