Think about an average day in your life: run through your twenty four hour schedule. Amidst all of the stuff you do, technology is right there with you. It begins as soon as you wake up; if you are an ordinary worker, you have to use an automobile to get there. Before that, you have turn up your espresso machine to get you going in the early morning! Most people have such a need for coffee that they cannot even function beforehand. Once you have used all of this technology to get you up, you are at work.
Biometrics is, generally, the analysis of what can be measured of your biological features. When it comes to computer security, biometrics has to do with certification techniques that utilize differentiating physical features that can be automatically affirmed.