How is Tony Stark able to talk to his PC when in suit and flying

Now that you have seen in the most movies that is featuring the plot "Iron Man". And that he actually is capable of communicating with his AI System everywhere he is in the world, So now here's how he is able to do that:

First, when he built and brought his AI in life with just an specific tiny thing called "Arc Reactor" And then he put into the heart of the suit and then so something holographic stuff has been deployed all across the room, Now but before he put the reactor into one of his suits he essentially was warned on the risks when he wears the suit and flies roam.... Now he able to do that because the movies are techninically a superhero, more like a science fiction book but just made up in realistic moves and the scenes are pretty much lively.