HID cards are proximity cards that control the kind of access individuals and employees have. I learned this from my father. I do not have one of my own, but Dad has one. He told me that his HID Card can access every single room and door in the office. It sounded very interesting, so I am going with my father tomorrow to his office. I want to see what it can do. I wish that we also had these cards at school. It can surely provide safety for us. The cards also look very cool. Maybe I can force Dad to give me one.