Speech recognition software

What I learned today about speech recognition software is basically everything. I never knew anything about the software before today. I learned that you control
your computer by your voice. For example when you talk it will turn what you are saying into text. Windows vista has the most powerful speech recognition system available; I also learned that schools use it for students that have trouble composing sentences and students who have physical disabilities. SO today I really learned about this software and think it will come in handy in the future.