Biometrics is the technology of measuring and analyzing biological data. In information technology, biometrics refers to technologies that measure and analyze human body characteristics, such as DNA, fingerprints, voice or facial patterns and hand measurements. Through these unique qualities, biometrics can be used as a form of personal authentication.
Perhaps the most popular form of biometric technology is fingerprint scanning. Capturing multiple reference points of the fingerprint through the biometric scanner, an algorithm is then used to convert this image into a code which effectively becomes a digital form of you. This is stored on a database for comparison which grants authentication into the secured area.