This is a small hardware device that plugs in between your keyboard cable and CPU to record every keystroke. The keystrokes are recorded in a memory which is inside the KEYKatcher device. After data has been recorded, you can review it by launching any word processing or text editing program and type in your password. It is the easiest way to protect your children from the ever-present danger on the internet. You will see the conversations they are having and know which web sites they are visiting. E-mail and Chat room activities are captured for you to see. It is very easy to use and just plug and play.