Fingerprint+Scanner+(Input+Devices)

Fingerprints are one of those bizarre twists of nature. Human beings happen to have built-in, easily accessible identity cards. You have a unique design, which represents you alone, literally at your fingertips. People have tiny ridges in their skin which can be used for extremely useful things such as ID & security. These ridges & 'Valleys' make it easier for a humen to handle and grip things, The same way a tire on a car works. A fingerprint scanner system has two basic jobs -- it needs to get an image of your finger, and it needs to determine whether the pattern of ridges and valleys in this image matches the pattern of ridges and valleys in pre-scanned images. There is 2 different ways of achieving an image of a fingerprint - Optical Scanning & capacitence Scanning, They both get the same image practically , but one process is completely different to the other.