It takes some getting used to your Majesty but its called a computer. Or a tablet. I'm not sure why though it is roughly the size of a tablet.
I am Elsa, Queen of Arendelle and I am pleased to make your acquaintance.
There was a woman here some weeks ago, also named Elsa and also Queen. But we did not share a face nor do I have her memories of her time here so it is strange indeed and it seems mostly unexplained.