Computers can store vast amounts of information. Another word for all that information is data. We all have to be careful about the data stored on computers, protecting it from people we do not trust. At school, the school office has important personal information about you - your name, your address, your date of birth, who to contact at home, and your telephone numbers. Teachers keep records - how many gold stars you have won, and just how well you are doing in math or history.