No it's not. It's called the batcomputer, just like his car is called the batmobile, his plane called the batplane, his boat called the batboat, etc etc. Pick up the ultimate guide to Batman, any of the comics, any of the toys, and any other merchandise and they will support this. And even if it's never refered to as the "batcomputer" in the new movie, that doesn't mean we can't call it that when talking about the film. You know, so we don't have to refer to it as,"the computer batman just happens to use" all the time.