Windows 10: Hey, Cortana (How-To Video)

One of the new features built-in to Windows 10 is called Cortana.  This is Microsoft's digital personal assistant technology, similar to Apple's Siri or Google’s Google Now.  You can ask Cortana any question using natural language and it will do its best to answer the question for you.

The more Cortana learns about you and your habits the more useful it will become. For example, it can alert you to upcoming events, give you flight information, give you information about packages shipped to you, etc.