Mark Zuckerberg builds an artificial intelligence assistant to run his house -- and entertain his toddler

Mark Zuckerberg has a new housemate: Jarvis, an artificial intelligence assistant he created this year that can control appliances, play music, recognize faces and, perhaps most impressively, entertain his toddler. The Facebook founder spent 100 hours putting together the virtual assistant -- named after the artificial intelligence system in "Iron Man" -- which understands spoken commands as well as text messages, he wrote in a 3,000-word Facebook post Monday. The virtual assistant texts Zuckerberg images of visitors who stop by during the day and opens the front door for those it recognizes. It can also tell when Zuckerberg's 1-year-old daughter, Max, wakes up "so it can start playing music or a Mandarin lesson," he wrote. In a tongue-in-cheek video he posted Tuesday on Facebook, Zuckerberg offers an example of Jarvis at work: "Max woke up a few minutes ago. I'm entertaining her," the virtual assistant (voiced by Morgan Freeman) tells Zuckerberg, before turning his attention to the toddler.